Power Rangers in Space

• Andros
  The Red Space Ranger, and the leader of the team; a native of the planet KO-35 and leader[5] of the Space Rangers. He uses his Ranger powers to defeat Astronema and try to recover his sister Karone. He also serves as Ashley's love interest. He piloted the Mega V1 Robo Zord and his primary weapon is the Spiral Saber. He is portrayed by Christopher Khayman Lee.
• Theodore Jay "T.J." Jarvis Johnson
  The Blue Space Ranger and second in command. He was previously the second Red Turbo Ranger, and leader of the Turbo Rangers. He piloted the Mega V3 Rocket and his primary weapon is the Astro Axe. He is portrayed by Selwyn Ward.
• Carlos Vallerte
  The Black Space Ranger and previously the second Green Turbo Ranger. He piloted the Mega V2 Shuttle Zord and his primary weapon is the Lunar Lance. He is portrayed by Roger Velasco.
• Ashley Hammond
  The Yellow Space Ranger and previously the second Yellow Turbo Ranger. She serves as Andros' love interest. She pilots the Mega V4 Saucer Zord and her primary weapon is the Star Slinger. She is portrayed by Tracy Lynn Cruz.
• Cassie Chan
  The Pink Space Ranger and previously the second Pink Turbo Ranger. She pilots the Mega V5 Tank Zord and her primary weapon is the Satellite Stunner. She is portrayed by Patricia Ja Lee.
• Zhane
  The Silver Space Ranger; he is kept in a hidden room inside the Megaship, cryogenically asleep for two years because he was badly injured in his last battle while saving Andros from a monster. When he was accidentally released, he helped the Rangers, but is affected by a 2.5-minute morphing time limit which he is later able to remove by absorbing a bolt of lightning with his Morpher. He piloted the Mega Winger Zord and his primary weapon is the Super Silverizer. He is portrayed by Justin Nimmo.

• Alpha 6
  After his voice chip was damaged during the destruction of the Power Chamber, he received a new voice chip, but does not sound the same and has a different personality. Alpha no longer speaks like a New Yorker and now uses his predecessor's catchphrase. He is voiced by Wendee Lee (uncredited).
• D.E.C.A.
  The on-board computer on the Megaship, D.E.C.A. responds to voice commands and is able to articulate in 3000 known languages. The ship is constantly monitored by her through cameras located in every room on the ship. She can also perform retinal scans. She is voiced by Julie Maddalena.
• Adelle Ferguson
  Owner of the Surf Spot, the Rangers' new hangout; from observation, she appears to have bought Youth Center from Jerome Stone and converted it. She is portrayed by Aloma Wright.
• Farkas "Bulk" Bulkmeier
  Returning once again from Turbo, overweight and egotistical, but a good-natured goof, he and Skull decide to seek out renowned alien expert Professor Phenomenus when they catch a glimpse of a UFO in the sky. He is portrayed by Paul Schrier.
• Eugene "Skull" Skullovitch
  Bulk's best friend, and his opposite in appearance and mentality; Skull is thin and more stupid than Bulk, to the point that he has to be told what to be thinking of. Skull is best known for his high-pitched laughter. He is portrayed by Jason A. Narvy.
• Professor Phenomenus
  An eccentric yet brilliant scientist who is constantly on the search for aliens on Earth. Bulk and Skull sought him out when they caught a glimpse of a UFO in the sky. The trio's misadventures and antics would often have them crossing paths with the Rangers. He is portrayed by Jack Banning.
• Teenage Mutant Ninja Turtles
  The Turtles were summoned and brainwashed by Astronema to fight the Rangers. Her control over them is later broken, and they team up with the Rangers to battle Astronema's forces. Before returning to New York the Turtles had one request: space surfing on the Galaxy Gliders. Due to Ninja Turtles: The Next Mutation being filmed in Vancouver, none of the Turtles' voice actors reprised their roles for their appearance.
  • Leonardo
    The leader of the Teenage Mutant Ninja Turtles. He is voiced by Tony Oliver.
  • Raphael
    The aggressive member of the Teenage Mutant Ninja Turtles.
  • Donatello
    The scientific member of the Teenage Mutant Ninja Turtles. He is voiced by Kim Strauss.
  • Michelangelo
    The fun-loving member of the Teenage Mutant Ninja Turtles. He is voiced by Michael Reisz.
  • Venus de Milo
    A female turtle who is the latest member of the group.
• Alien Rangers
  The Power Rangers from the water planet Aquitar. They have been allies to the Power Rangers of Earth, since Zordon called upon them when Master Vile reversed Earth's time. The Alien Rangers were later seen fighting Divatox's army.
• Justin Stewart
  T.J., Cassie, Ashley, and Carlos' former teammate. After the destruction of the Power Chamber and the extinguished of the Turbo powers, Justin elected to remain on Earth to be with his father. Storm Blaster tracked him down and gave Justin a new Turbo morpher, to help the Space Rangers. He is portrayed by Blake Foster.
• Karone
  Andros' sister and the main anti-hero of the series, She was kidnapped as a child by Darkonda and handed over to Dark Specter. Karone was raised by Ecliptor, who became a father figure to her. He told that her parents were killed by the Power Rangers, she would come to be known as "Astronema", Princess of Evil. She would eventually discover the truth and defect to the Rangers' side for a time, before being captured and brainwashed to be completely loyal to Dark Specter when she went to the Dark Fortress in order to reprogram an asteroid that Dark Specter had sent on a collision course with Earth. Karone was eventually reverted to herself by Zordon's energy wave in the finale. She is portrayed by Melody Perkins.
• Trey of Triforia (Gold Zeo Ranger)
  Wielder of the Golden Power Staff, who temporarily passed his powers onto Jason Scott in Zeo, while he healed after being split into three distinct personalities. Trey was later seen fighting Rita Repulsa and Lord Zedd's army.
• Blue Senturion
  An intergalactic police officer from 2000; he originally was sent back in time to warn Dimitria of the United Alliance of Evil's plot, but now helps enforce the law and defeat villains. He also assisted the Turbo Rangers, before departing to Eltar with Dimitria to help Zordon. The Blue Senturion was later seen with the Phantom Ranger fighting the Machine Empire's army. He is voiced by David Walsh (uncredited).
• Phantom Ranger
  A Ranger of unknown origins. He had helped the second Turbo Rangers fight Divatox. He and Cassie share a bond. The Phantom Ranger helped the rangers gain access to a new Megazord and was later seen with the Blue Senturion fighting the Machine Empire's army.
• Zordon
  Founder and former mentor of the Mighty Morphin Power Rangers, Power Rangers Zeo, and original Turbo Rangers. Zordon returned to his home planet of Eltar, only to be captured; Dark Specter proceeded to continually drain Zordon of his powers while filling his container with lava, ensuring all Rangers would lose hope. With Dark Specter's destruction, Zordon regained his powers, only to sacrifice himself to unleash an energy wave that wiped out the United Alliance of Evil. He is voiced by Robert L. Manahan (uncredited).
• Adam Park
  Carlos' predecessor and Zack's successor, Adam was the second Black Mighty Morphin Ranger, Green Zeo Ranger, and the first Green Turbo Ranger. When Carlos began doubting himself following a disastrous fight with Lizwizard, Adam helped him through it. Adam also held onto his morpher when Rito destroyed his team's powers. He succeeded in morphing into the Black Mighty Morphin Ranger once more, though it nearly killed him. He is portrayed by Johnny Yong Bosch.

• Dark Specter
  The "Grand Monarch of Evil", who all other villains fear, Dark Specter appears as a gigantic lava-monster. He is the leader of the United Alliance of Evil. He was shown to have the ability to shape shift. Dark Specter was responsible for the fall of Eltar, he managed to capture Zordon and proceeded to slowly drain his powers throughout the season. He nearly met his end with the creation of the Psycho Rangers, who drew their energy from the evil monarch every time they fought. He was killed in the finale by Darkonda, who had stolen a Velocifighter armed with an experimental laser. With his dying breath, he devoured Darkonda before exploding. He is voiced by Christopher Grey.[6][lower-alpha 1]
• Astronema
  The "Princess of Evil", Astronema is a sinister and ruthless villainess who was groomed as a child in the ways of evil. It is later discovered that she is Karone, sister of the Red Space Ranger Andros. She defected to the Rangers' side for a time, before being captured, brainwashed and given cybernetic implants which overwrote her emotions. As a result of this, her demeanor became cold, and even more ruthless and evil than before. She would later create the Psycho Rangers and link their powers directly to Dark Specter in an attempt to do away with the monarch and take power for herself. When Dark Specter is killed in the finale, she becomes the "Queen of Evil", she is seemingly killed accidentally during a confrontation with Andros, but is revived by Andros' tears. In Power Rangers Beast Morphers, Astronema's gauntlet was found in Ryjack's collection of weapons. Astronema was Robo-Roxy's choice to rejoin Evox's army. Robo-Blaze remarks that Astronema was purified much of Robo-Roxy's disgust. She is portrayed by Melody Perkins.
• Ecliptor
  A wire-frame model-themed robot who is Astronema's guardian and surrogate father. He raised Astronema to be evil, caring for her like his own daughter. After Astronema learns her true identity, Ecliptor remained devoted to his princess, defending her against the attacks of his own forces. Branded a traitor, he is given additional cybernetics that suppress his better nature and make him purely evil. Upon seeing Astronema seemingly slain by her brother, Ecliptor broke free of his programming to get revenge. Despite his fatherly affection for Astronema, and his high regard for loyalty and honor, Ecliptor was killed by Zordon's energy wave. He is voiced by Walter Lang.
• Elgar
  Divatox's idiotic, illiterate nephew. He was reassigned to the Dark Fortress by Dark Specter, mostly to allow Divatox to move Zordon around the universe without his bumbling threatening to ruin things. He is killed by Zordon's energy wave. He is portrayed by Kenny Graceson and voiced by David Umansky.
• Darkonda
  A bandaged bounty hunter who was responsible for kidnapping Karone as a child. Sadistic and treacherous, Darkonda was the arch rival to Ecliptor. He was given 9 lives, but managed to lose all but one though bungling or being defeated. He planned to kill Dark Specter with the missile intended for Earth's destruction, but was swallowed by the evil monarch before he perished. He is voiced by Steve Kramer.
• Darkliptor
  An entity which is created when Darkonda forcibly absorbs Ecliptor into himself, thereby adding all of Ecliptor's powers and some of Ecliptor's physical being to Darkonda's own. When Darkliptor exists, Darkonda's personality is dominant, and with Ecliptor's powers on top of Darkonda's, Darkliptor is near invincible. Ecliptor constantly tries to free himself from Darkliptor, and always succeeds eventually, to Darkonda's annoyance. He is voiced by Steve Kramer.
• Quantrons
  Astronema's foot soldiers. Appearing as silver robots with blades as their primary weapons. Like the Cogs before them, they pilot vehicles for attacks.
• Craterites
  Foot soldiers from the Astro Megaship simudeck's training program. A lightning bolt once hit the Megaship while T.J. And Ashley were doing a session, causing them to become real and hide among the people in Angel Grove by disguising themselves as humans. After fighting the Rangers, they then merged into a Conglomerate version of themselves. After being defeated by the Astro Megazord, they were once again part of the simudeck program.
• Piranhatrons
  Divatox's foot soldiers from Power Rangers Turbo. Some of them were placed under Astronema's control.

The Psycho Rangers are five evil Rangers created by Astronema as part of her plans to destroy Dark Specter and originally drew their energy from him, who felt the drain more strongly if the Psychos fought hard. Though stronger than the Power Rangers, the Psycho Rangers were impatient, could not work together, and were unwilling to follow Astronema's plans, leading to them being destroyed by the Space Rangers before Dark Specter was. When grown, their true monster forms were revealed. As spirits, they sought a way to return to physical form. This led them to Secret City where they used a digitizing device in reverse to become real again. However, the rangers digitized them into data cards. The data cards later ended up in Deviot's possession, who revived them in Power Rangers Lost Galaxy, but they were again destroyed by both the Galaxy and Space Rangers.

The alternate continuity depicted in Boom Studios' comic series explains the origin of Psycho Rangers started from Supersonic Rangers (an adaption of Chikyu Sentai Fiveman debuted in Power Rangers Super Megaforce), centering the original Psycho Ranger, Psycho Green. Astronema's Psycho Rangers are revealed to be based on one of her past victims across the planets, thus unknowingly uses Psycho Green as the main pattern. In this adaption, alternatively takes place after Lost Galaxy, Astronema/Karone's Psycho Ranger was revived a third time by Psycho Green, giving Karone a chance to redeem herself while end up having a conflict with Space Rangers over redeeming her Psycho Rangers. After spending time with a redeemed Karone, her Psycho Rangers finally redeemed and start new lives.

In Power Rangers Beast Morphers, Psycho Red's data card was found in Ryjack's collection of weapons. Robo-Blaze was the one who suggested that they use the Re-Animizer to revive Psycho-Red only for Robo-Roxy to mention that he was obsessed with destroying the Red Ranger and might turn against them. When Robo-Blaze states that they should revive all the Psycho-Rangers, Snide states that they can only renaimate one of them.

• Psycho Red, later named Virgil in Boom Studios comic series
  Psycho Red was the leader and the most powerful of the Psycho Rangers, as demonstrated when he faced all five Space Rangers in battle without aid. He was also the most impatient of the Psycho Rangers and became more and more frustrated when Astronema would not let them destroy the Space Rangers. Though each Psycho Ranger wanted to destroy their Space Ranger counterpart, Psycho Red was the most obsessed with doing so – even jeopardizing nearly successful plans. His monster form was a fire-like monster. Psycho Red was destroyed by the powered up V3 Missile attack from the Mega Voyager. He is portrayed and voiced by Patrick David.
• Psycho Black, later named Photon in Boom Studios comic series
  Psycho Black was created as the evil counterpart of the Black Space Ranger. Of the five, he was the most level-headed and least rebellious. He was not too happy with Astronema's strategy, but followed her orders because he was afraid of being destroyed if he rebelled. He tended to disagree with Psycho Red, finding him too irrational. He stopped Psycho Red from killing Andros at a time when Red was refusing to obey Astronema's orders, angry that Red wanted all the glory for himself. His Psycho-Monster form was a rock golem who can use a rock-like tentacle. He was destroyed by a V3 Missile Attack from the Mega Voyager. He is portrayed and voiced by Michael Maize.
• Psycho Blue, later named Axe in Boom Studios comic series
  Psycho Blue was designed to destroy the Blue Space Ranger. He had a seemingly unstable and insane personality - not unlike a raging psychopath. On one occasion, he beat TJ so hard that TJ had to be put in intensive care aboard the Megaship. Over time, his obsession with his counterpart got the better of him, to the point where he refused to give up when he faced five Blue Rangers (the other four main Rangers had re-colored their costumes to mimic the Blue costume). He rushed into battle, taking out four Rangers, but was eventually overpowered by the Blue and Silver Rangers. His Psycho Monster form is a crystalline ice monster with freezing powers. Psycho Blue was destroyed by the Winged Mega Voyager's V3 Missile Attack. He is voiced by Wally Wingert.
• Psycho Yellow, or Yellow for short in Boom Studios comic series
  Psycho Yellow was the loner Ranger - she did not participate in battle as much as the others did. She preferred to let others do the dirty work while she claimed victory. She even double-crossed Psycho Pink, using her for her own scheme. Psycho Yellow was also able to infect the Mega Voyager and force it to fight against the Mega Winger and Delta Megazord after transforming into a computer virus. In her monster form, Psycho Yellow was a spider/hornet-like monster, and was destroyed by the energy that was absorbed from the Psycho Monsters' attack, which was then used to fire an ultra-charged V3 Missile attack. She is portrayed and voiced by Kamera Walton.
• Psycho Pink, later named Nokrea in Boom Studios comic series
  Psycho Pink was the least fleshed out of the Psycho Rangers, though at times she appeared to be the most aggressive of them. When Astronema decided the Psycho Rangers would take on one Space Ranger at a time, Psycho Pink was selected to fight first. However, she went in a secret alliance with Psycho Yellow that ended abruptly when Yellow betrayed her. The Pink and Yellow Space Rangers used this to their advantage and defeated Psycho Pink. In her monster form, Psycho Pink was a plant-like monster and was destroyed by the Mega Voyager's V3 Missile attack. As seen in Lost Galaxy, she is revealed to be even more powerful than Psycho Red, even after Dark Specter's death, thus being directly responsible for the death of Kendrix, the original Galaxy Pink Ranger whom Karone succeeded. In Boom Studios' comic book continuity, unlike other Psycho Rangers, Psycho Pink's civilian form is visibly human-like alien, rather than just like Earth's humans, as well being the first redeemed Psycho Ranger in the said adaption. She is voiced by Vicki Davis.
• Psycho Green, also known as Trek
  An exclusive character debuted in Boom Studios' comic book continuity. He was originally the Supersonic Green Ranger, a Sixth Ranger of a Ranger team from Xybria, a home planet of the Power Rangers Time Force Green Ranger Trip. He betrayed his teammates due to being mistreated by his leader Supersonic Red, Ace, although he did harbored his feelings towards Supersonic Pink, Star, despite understanding her incoming tragic decision. After seeking Dark Specter, he became the first ever Psycho Ranger, and the only one who is not a cyborg, as well as heavily have the combat tactics of Mighty Morphin Power Rangers Green Ranger, unlike Astronema's Psycho Rangers. His transformation into Psycho Green progressively made Trek even as dangerous as Darkonda, losing his morals for many years. During his attempt to unseal Rita Repulsa on the moon, he killed most members of 1969's Mighty Morphin Rangers barring Terona Washington/Yellow and Grace Sterling/Red, whom manage to get Trek's Psycho Dagger for a future use against incoming evil threats after his supposed death by the hands of Nikolai Chukarin/Blue Ranger, whom Trek killed while in his flaming-headed dragon-like monster. In reality. Trek survived and was unable to unseal Rita due to requiring a long recovery of his power, thus went into hiding and observes many events throughout the live action events of Mighty Morphin up to Lost Galaxy. Trek also learned the presence of Astronema's Psycho Rangers, thus technically made him Astronema/Karone's "older brother". Trek revives Astronema's Psycho Rangers for a third time to lure Astronema/Karone back to evil, unaware that Karone went undercover by herself to redeem her Psycho Rangers and turn on Trek. He was about to kill Andros, whom Karone knocked him out via telepathy, but was stopped by a redeemed Psycho Pink. In the end, Trek is imprisoned by the now redeemed Psycho Rangers.

The monsters used in this season work for Astronema. The monsters are adapted from the monsters that are featured in Denji Sentai Megaranger. To make a monster grow, Astronema would give orders to fire the Sattelaser at the monster making it grow.

• Manta Menace - A stingray monster occasionally fought on the Simudeck.
• Electrotramp (voiced by Blake Torney) - An electrical monster that Astronema used to draw out the Rangers to have her hypnotized Teenage Mutant Ninja Turtles "help" them defeat him. In battle, he summons large spheres of electricity which he then throws at his opponents. It was destroyed by the Ninja Turtles when Venus de Milo sends his electrical attack back at him.[lower-alpha 2]
• Clawhammer (voiced by Kim Strauss) - A shrimp monster from the planet Kalderon who can project an energy blade from his claw. It was destroyed by the Astro Megazord.
• Voltage Hog (voiced by Kirk Tornton) - An unspecified electrical monster that can drain electricity from power lines and use it in its tentacles to fight its enemies. It was destroyed by the Astro Megazord.
• Elephantitan (voiced by Michael Sorich) - A titanic elephant monster used by Astronema. It was destroyed by the Astro Megazord.
• Waspicable (voiced by Ken Merkx) - Waspicable is a kind-hearted wasp monster. He was able to project powerful energy blasts from his eyes and teleport in a little ball beam. After helping to defeat Sting King, he planned to do good where he started by retrieving a girl's balloons that drifted into the air.[lower-alpha 3]
• Sting King (voiced by Bob Papenbrook) - A robotic bee monster partnered with Waspicable. He could fire a rapid series of lasers from his stinger arm or release a swarm of bees. When in space, his blasts can affect an entire city. It was destroyed by the Astro Megazord.
• Crocovile (voiced by Tony Oliver) - A regenerating crocodile monster used by Astronema to distract the Rangers while Dark Specter whisks Zordon far away. It was capable of duplicating himself: one with a crocodile head for a left hand and another with a crocodile tail for a right arm. It was destroyed by the Astro and Delta Megazords.
• Destructipede (voiced by Mike Reynolds) - An illusion-casting centipede monster used by Astronema. It was destroyed by the Astro Delta Megazord.
• Power Driller (voiced by Kirk Thornton) - A rhinoceros-like drill monster summoned by Destructipede. When he walked, he created earthquakes. It was destroyed when Destructipede was destroyed.
• Fearog (voiced by Ezra Weisz) - A toad monster summoned by Destructipede. It was destroyed when Destructipede was destroyed.
• Behemoth (voiced by Richard Cansino) - A moth monster summoned by Destructipede. It was destroyed when Destructipede was destroyed.
• Mamamite (voiced by Jackie Marchand) - A termite monster. It was destroyed by the Spiral Saber's Booster Mode and the Quadrablaster.
• Termitus (voiced by Dave Mallow) - A soldier termite-themed monster that was formed when the cloud of Mamamite's termites combined. It could eat through the Rangers' weapons and has the ability to separate itself into a cloud of termites in order to evade the Rangers attacks. It was destroyed by the Astro Delta Megazord.
• Barillian Bug (voiced by Kim Strauss) - Insect monsters that once attacked KO-35 turning whoever it stung into the scorpion-like Barillian Bug monsters. It was destroyed by the Astro Megazord.
• Mutantrus (voiced by Brett Walkow) - A giant squid-like monster grown from a portion of the giant mutated Darkonda. He could fly through space and blast lasers from his forehead. It was destroyed by Mega V1 and V3.
• Lionizer (voiced by Ken Merckx) - A robotic lion monster used by Astronema. It was destroyed by the Mega Voyager.
• Body Switcher (voiced by Ezra Weisz) - A body-switching bat-like Grim Reaper monster used by Astronema. On a related note during Body Switcher's demonstration of his abilities, five of the monsters Body Switcher turned into were Beetleborgs monsters Rocket Man, Cataclaws, LottaMuggs, Unctuous, and Firecat. It was destroyed by the Mega Voyager.
• Lunatick (voiced by Bob Papenbrook) - An antlion monster from the planet Kadix that had battled the six Space Rangers. It spoke a strange alien language. It was destroyed by the Astro Delta Megazord.
• Crocotoxes (voiced by Michael Sorich) A duo of toxic eel monsters (one red, one blue) created by Darkonda on Deketa 5. The toxin gave people black spots when they were in the water. One was destroyed by the Astro Delta Megazord and the other was destroyed by the Silver Ranger.
• Praying Mantis (voiced by Dave Mallow) - A robotic mantis monster used by Astronema. It was destroyed by the Mega Voyager.
• Destructoid (voiced by Ezra Weisz) - An unspecified wild beast monster that turned on Astronema when she started berating it for failure. Zhane saved her by driving it off.[lower-alpha 4]
• Horror Bulls (voiced by Brad Orchard) - A set of bison monsters used by Ecliptor. The first was destroyed by the Spiral Saber's Booster Mode and Quadrablaster. The second was destroyed by the Astro Delta Megazord.
• Coralizer (voiced by Tadahiro Nakamura) - A coral monster used by Darkonda. He infected the KO-35 Rebels with corals to grow on them on the planet Centaur B. It was destroyed by the Astro Delta Megazord.
• Lizwizard (voiced by Ezra Weisz) - An electrical chameleon monster used by Astronema. His long tongue enables him to switch places with whoever is wrapped up in them. It was destroyed by the Astro Megazord.
• Batarax (voiced by Richard Cansino) - A sonic-emitting bat monster used by Astronema. It was destroyed by the Astro Megazord.
• Spikey (voiced by Bob Papenbrook) - A cactus-based monster with sharp claws on one of his hands who was created by Astronema. It was destroyed by the Mega Voyager.
• Frightwing (voiced by Tony Oliver) - A condor monster used by Astronema. It was destroyed by the Winged Mega Voyager.
• Owl Monster (voiced by Brad Orchard) - A robotic owl monster. He could fire light blasts and lasers from his eyes in battle. It was destroyed by the Astro Megazord.
• Datascammer (voiced by Richard Steven Horvitz) - A robotic data-gathering lizard monster used by Astronema. He could emit blasts from his mouth and scanned information from the Power Rangers for Astronema. It was destroyed by the Winged Mega Voyager.
• Jakarak (voiced by Lex Lang) - An anglerfish monster from the planet Tirna who was the former master of Seymour. He had a flower on his head that was capable of turning anything into stone. It was destroyed by the Astro Delta Megazord.
• Vacsacker (voiced by Richard Epcar) - A robotic vacuum-themed monster that was used to abduct people to Secret City. It was destroyed by the Mega Voyager. He is voiced by Richard Epcar.
• Tankenstein (voiced by Derek Stephen Prince) - A powerful shape-shifting mechanical entity used by Astronema. He could regenerate himself as well as electrocute anything with hidden cables. It self-destructed in order to destroy the Mega Voyager.

Villains from previous series also appeared as members of the United Alliance of Evil where they were gathered by Dark Specter. When it came to the two-part episode "Countdown to Destruction," they lead their attacks on different planets with an army of monsters from this season alongside those from previous Power Rangers series and other Tokusatsu-adapted programs where some of them appeared in both armies. The release of Zordon's Energy Wave purified some of them into humans while reducing the monsters to sand. Besides Astronema's group, information about these recurring villains can be found in the following articles:

• Lord Zedd and Rita Repulsa's Group - The first enemies of the Power Rangers.
  • Lord Zedd - He took the news of the Turbo Power Rangers' defeat well, only being afraid of Rita's reaction. Zedd and Rita later attacked the Vica Galaxy where their army fought the Gold Ranger. When Zordon's Energy Wave was released, Zedd and Rita were purified into humans. He is portrayed by Ed Neil and voiced by Robert Axelrod.
  • Rita Repulsa - An acquaintance of Divatox. Rita was left shocked by the news that Divatox had defeated the Power Rangers. Zedd and Rita later attacked the Vica Galaxy where their army fought the Gold Ranger. When Zordon's Energy Wave was released, Lord Zedd and Rita were purified into humans. She is portrayed by Carla Perez and voiced by Barbara Goodson.
  • Goldar - He partook in the attack on the Vica Galaxy where he used his attack to subdue the Gold Ranger. He is voiced by Kerrigan Mahan.
  • Squatt - He made a cameo during the attack on the Vica Galaxy.
  • Finster - Finster was seen at Dark Specter's party on the Cimmerian Planet and during the attack on the Vica Galaxy. He is voiced by Robert Axelrod.
  • Master Vile - Rita Repulsa's father. He was only seen with Blue Globbor at Dark Specter's party on the Cimmerian Planet.
  • Z-Putties - The foot soldiers of Lord Zedd and Rita Repulsa. A lot of them were seen during the attack on the Vica Galaxy.
  • Tenga Warriors - The crow-like foot soldiers of Lord Zedd and Rita Repulsa. They were only seen at Dark Specter's party on the Cimmerian Planet.
  • Lord Zedd and Rita Repulsa's Army - The army of monsters that is used by Lord Zedd and Rita Repulsa to attack the Vica Galaxy. They consist of:
    • Electrotramp - See above.
    • Blue Globbor - Master Vile's monster. He was briefly seen on the Cimmerian Planet prior to "Countdown to Destruction."
    • Jellyfish Warrior - A jellyfish monster.
    • Pumpkin Rapper - A rapping pumpkin monster whose jack-o'-lantern head is upside down.
    • Punch-A-Bunch - A robotic boxing monster.
    • Psycho Blue's Monster Form - See above.
    • Octophantom - An octopus/elephant monster.
    • Oysterizer - An oyster monster.
    • Vampirus - A Baku/vampire bat monster.
    • Miss Chief - A love-themed Kasha monster.
    • Stenchy - A robotic skunk monster.
    • Sting King - See above.
    • Fearog - See above.
    • Frightwing - See above.
    • Craterite Conglomerate - See above.
    • Wild Weeder - A gardener-themed monster
    • Two-Headed Parrot - A two-headed parrot monster
    • Horror Bull #2 - See above.
    • Snizzard - A Ladon-themed snake/lizard monster with cobra-headed hands and an apple-shaped part on his head.
    • Altor - A robotic Gold Ranger-themed monster.
    • Stag Beetle - An energy-draining stag beetle monster.
    • Termitus - See above.
    • Ravenator - A large-mouthed, hunger-inducing monster.
    • Mutantrus - See above.
    • Psycho Red's Monster Form - See above.
    • Destructipede - See above.
    • A recolored Pirantishead with Hate Master's duplicated "hair" from "Fire in Your Tank/"
    • The Zhane-injuring monster from "Survival of the Silver/"[lower-alpha 5]
    • Unused Ninja Sentai Kakuranger monster Noppera-bō
    • Unused Megaranger monster Mushroom Nezire
    • Unused Megaranger monster Pig Nezire
    • Unused B-Fighter Kabuto monster Changing Body Beast Isogilala
    • Beetleborgs monsters Aqualungs, Kombat Knat, LottaMuggs, Porkasaurus, Cataclazmic, Torch Mouth, Ultra Vulture, and Changeling.

• Machine Empire - An empire consisting of robots and enemies of the Zeo Rangers. They and General Havoc attacked the Phantom Ranger's home world. When Zordon's Energy Wave was released, the Machine Empire was reduced to sand.
  • King Mondo - The king of the Machine Empire. He is voiced by David Stenstrom.
  • Queen Machina - The queen of the Machine Empire. She is voiced by Brianne Siddall.
  • Prince Sprocket - The son of King Mondo and Queen Machina. He is voiced by Barbara Goodson.
  • Klank and Orbus - The aids of King Mondo. They are voiced by Oliver Page and Barbara Goodson.
  • Cogs - The foot soldiers of the Machine Empire.
  • Quadrafighters - The octopus-themed jet of the Machine Empire that are piloted by Cogs.
  • Machine Empire's Army -The army of monsters that is used by the Machine Empire to attack the Phantom Ranger's home world. They consist of:
    • Eye Guy - A multi-eyed monster.
    • Goo Fish - A fish monster.
    • Altor - A robotic Gold Ranger-themed monster.
    • Two-Headed Parrot - A two-headed parrot monster
    • Dramole - A mole monster.
    • Slippery Shark - A hammerhead shark monster.
    • Psycho Red's Monster Form - See above.
    • Owl Monster - See above.
    • Shrinkasect - An insect collector-dressed grasshopper monster.
    • Destructipede - See above.
    • Oysterizer - An oyster monster.
    • Termitus - See above.
    • Fearog - See above.
    • Mace Face - A spiked robot armadillo monster.
    • Coralizer - See above.
    • Crocotox Red - See above.
    • Waspicable - This one is different from the one listed above.
    • Clawhammer - See above.
    • Lizwizard - See above.
    • Lunatick - See above.
    • Face Stealer - An ancient Kahmalan/Nuppeppō face-stealing monster.
    • Terror Tooth - A spiked snapping turtle monster.
    • Stag Beetle - A stag beetle monster.
    • Marvo the Meanie - An Amanojaku-themed monster.
    • Spikey - See above.
    • Pharaoh - An ancient Pharaoh/appraiser-themed villain who was the former fiancé to Divatox.
    • A black, hornless, and furry version of Robogoat from "Fire in Your Tank."
    • Unused Megaranger monster Mushroom Nezire
    • Beetleborgs monsters Aqualungs, Kombat Knat and Triplesaurus Rex

• Divatox's Space Pirates - The enemies of the Turbo Rangers.
  • Divatox - The leader of the Space Pirates and Elgar's aunt who becomes a rival of Astronema. She later led her army to fight the Alien Rangers on Gratha where she is disappointed that Astronema succeeded Dark Specter. When Zordon's Energy Wave was released, Divatox was purified into a human. She is portrayed by Hilary Shepard Turner.
  • Rygog - Divatox's second-in-command. He was present at Divatox's attack on Gratha. He is voiced by Lex Lang.
  • Porto - Divatox's technical advisor. He is voiced by Scott Page-Pagter.
  • General Havoc - Divatox's brother. He accompanied the Machine Empire in attacking the Phantom Ranger's home world where they were opposed by the Blue Senturion and the Phantom Ranger. When Zordon's Energy Wave was released, General Havoc was reduced to sand. He is voiced by Richard Cansino.
  • Piranhatrons - The foot soldiers of Divatox.
  • Putra Pods - The Stegosaurus-like foot soldiers of Divatox. One Putra Pod was with Divatox's Space Pirates during Dark Specter's party on the Cimmerian Planet.
  • Divatox's Army - The army of monsters that is used by Divatox to attack Gratha. They consist of:
    • Wolfgang Amadeus Griller - A musical zombie monster.
    • Psycho Blue's Monster Form - See above.
    • Vacsacker - See above.
    • Katastrophe - A cat/Kitsune monster.
    • Silo - A robotic rocket monster.
    • Admiral Abominator - A robotic admiral monster.
    • Tough Tusks - A robotic mammoth monster.
    • Guitardo - A guitar-playing cicada monster.
    • Translucitor - A shaman-themed orangutan monster.
    • Psycho Yellow's Monster Form - See above.
    • Unused Ninja Sentai Kakuranger monster Noppera-bō
    • Unused Ninja Sentai Kakuranger monster Daidarabotchi
    • Unused B-Fighter Kabuto monster Water Dwelling Beast Kapparapa
    • Unused B-Fighter Kabuto monster Heat Fruit Beast Pineappler
    • Beetleborgs monsters Furocious, Crimson Creep, and LottaMuggs