List of Gilligan's Island characters

• Gilligan (played by Bob Denver) - The title character of the sitcom. Gilligan is a crewman of the S. S. Minnow who worked for the Skipper. He is well-meaning but bumbling, and he always seems to inadvertently mess up the castaways' escape. He wears a red shirt, light blue pants, and a white sailor's hat.
• The Skipper (played by Alan Hale Jr.) - His real name is Jonas Grumby and he is the captain of the S. S. Minnow. He is quite portly, leading to numerous fat jokes from Gilligan. Such an instance is when the Professor and Gilligan are helping him into a wetsuit: the Skipper says that he just has big bones, to which Gilligan adds: "and they're covered in big meat." Whenever he gets frustrated with Gilligan, he swats him in the head with his hat.
• Thurston Howell III (played by Jim Backus) - Thurston is a millionaire used to luxurious living and never does any work on the island. The only exception is when the castaways believe that Mr. Howell is broke and make him work. He devises many get-rich-quick schemes on the island. Thurston was originally a multi-billionaire until the stock market crash rendered him a multi-millionaire.
• Mrs. Howell (played by Natalie Schafer) - Thurston's wife. She can be more spoiled than Mr. Howell at times, but is always the first to want to try something new. Mr. Howell always calls her "Lovey". Her maiden name is Wentworth.
• Ginger Grant (played by Tina Louise) - A movie star from Hollywood. Ginger usually tries to use tricks from the movies she starred in to solve problems causing other castaways to rescue her from any dangers that befall her. She helps Mary Ann with cooking and dishwashing.
• The Professor (played by Russell Johnson): His real name is Roy Hinkley and he was a high school teacher and scout master before being stranded on the island. He has numerous scientific degrees and uses his knowledge to build many things on the island out of available materials. He is the most well-educated of the group and always has a logical answer to everything (although not always correct).
• Mary Ann Summers (played by Dawn Wells) - A farm girl from Winfield, Kansas. Not much is known about her before she gets to the island. She is portrayed as a typical "girl next door" and does most of the laundry and cooking with some help from Ginger. She is famous for her coconut cream pies which usually end up on Gilligan's face. She also appears to have a slight crush on Gilligan.

• Radio Announcer (voiced by Charles Maxwell) - An announcer on the radio that the castaways own. The castaways would listen to his plot-advancing radio bulletins in many episodes and always with perfect timing to hear the exact news they needed to know.
• Wrongway Feldman (played by Hans Conried) - A fighter pilot from World War I. He was stuck on the island when he tried to fly around the world in The Spirit of the Bronx. He leaves at the end of the episode, but returns later saying he will stay on the island. However, he leaves again but he crashes and never appears again. The castaways get a message from him saying he "crashed on a strange island" which appears to be Hawaii.
• Dr. Balinkoff (played by Vito Scotti) - A mad scientist who appears twice. For his first appearance, he takes the castaways to his secret lair on another island. In the end, the castaways escape. The second time, he uses mind-control rings to get the castaways to rob Fort Knox. He then flees when they attack him with coconuts and is never seen by them again. He owns a pet monkey named Igor.
• Japanese Sailor (played by Vito Scotti) - Appeared in two episodes. For his first appearance, he locks everybody on the island up except Gilligan and Skipper. In his second appearance, he appears in a flashback of events that never happened.
• The Gorilla (played by Janos Prohaska) - The only animal antagonist on the island, causes mayhem and mischief. In the episode Diamonds Are an Ape's Best Friend, he kidnaps Mrs. Howell because her perfume acted as a pheromone. In the episode Chain of Command, he disciplines Gilligan to be a better leader. In the episode Forward March, he shells the castaways with hand grenades after finding WWII weapons in a cave. In the episode Our Vines Have Tender Apes, the Gorilla is replaced as an orangutan. Janos Prohaska also portrayed Gladys the chimpanzee in the episode Beauty Is as Beauty Does.

In some episodes, there are different people who appear on Gilligan's Island that are either visitors or have been on the unexplored parts of the island.

• Wrongway Feldman (played by Hans Conried) - A famed aviator, missing for 23 years, has been living on the island.
• The Japanese Sailor (played by Vito Scotti) - A Japanese sailor who doesn't know World War II is over, arrives in his one-man submarine.
• Dr. Boris Balinkoff (played by Vito Scotti) - Dr. Balinkoff, an archetypal mad scientist with nefarious motives, twice visits the island.
• The Mosquitoes - A rock/pop group who came to the island to escape all their fans. They were annoyed into leaving by the castaways, who eventually got them to leave by the girls forming the musical group "The Honeybees". The Mosquitoes left, leaving behind one of their records, called "The Mosquitoes at Carnegie Hall". Their names are Bingo, Bango, Bongo, and Irving.[1]
• Erika Tiffany-Smith (played by Zsa Zsa Gabor) - Appeared in the season two episode "Erika Tiffany-Smith to the Rescue". Erika is a rich socialite and is a rival to Mrs. Howell. However, Mr. Howell takes a liking to Erika when she lets word out that she wants to buy the island; and, as usual, Mr. Howell takes all money offers. Erika falls in love with the Professor, ignores Mary Ann's sweetness and the Skipper's advances of romance, and treats Gilligan (like everyone else) as a butler. Ginger adores Erika because of her owning several movie studios; however, Ginger doesn't appear on screen with Erika at all. Erika leaves claiming to return and rescue the castaways and buy the island. Like other visitors, she never returns. She is heard on the radio at the end of the episode saying she doesn't know the coordinates of the island.
• Harold Hecuba (played by Phil Silvers) - Season 3, episode 4 was "The Producer" (airdate October 3, 1966).[2] Obnoxious, overbearing, and smarmy Hollywood producer Harold Hecuba crash-lands on the island. When Ginger's acting fails to impress him, the castaways attempt to woo Hecuba with their collective talent in hopes of enticing him to rescue them. They put on an original play: A musical version of Hamlet consisting of songs sung to the instrumental melodies of popular arias from the operas Carmen and The Tales of Hoffmann (on records owned by Mr. and Mrs. Howell which were inexplicably taken aboard the Minnow and managed to survive the shipwreck). However, true to form as both guest to the island and conniving producer stereotype, Harold Hecuba sneaks back alone to civilization in the night. The castaways soon hear of his new hit smash‍—‌a musical version of Hamlet.
• Eva Grubb (Tina Louise) - A plain Jane double for Ginger arrives on the island and attempts to assume Ginger's identity in the episode "All About Eva".
• Jungle Boy (played by Kurt Russell) - A "Jungle Boy" is found on the island in the first season episode "Gilligan Meets Jungle Boy".
• Jackson Farrell (Larry Storch) - a bank robber on the lam plans to use the island as a hideout.
• Alexandre Gregor Dubov (Harold J. Stone) - The castaways discover a reclusive, eccentric painter living on the island.
• El Presidente Pancho Hernando Gonzales Enrico Rodriguez of Ecuarico (Nehemiah Persoff) - a Latin-American dictator is exiled on the island, foments a revolution and convinces Gilligan to become his puppet leader.
• Ivan and Igor (Vincent Beck, Danny Klega) - Two Russian Cosmonauts in their space capsule land on the island.
• Mr. Howell's double (Jim Backus) - A look-alike for Mr. Howell assumes his identity, and ends up on the island after falling off a boat.
• Ghost (Richard Kiel) - A Russian spy attempts to scare the castaways from the island.
• Gilligan's Double (Bob Denver) - A Soviet secret agent who is Gilligan's double, arrives on the island.
• Lord Beasley Waterford (John McGiver) - A British nobleman visits the island in search of a rare butterfly.
• Norbert Wiley (Don Rickles) A con man and kidnapper arrives on the island.
• George Barkley (Strother Martin) - A dishonest game show contestant needs to survive a week on the supposedly deserted island in order to win $10,000.
• Johnathan Kincaid (Rory Calhoun) - A famous big game hunter wanting a human trophy decides to hunt Gilligan.
• Duke Williams (played by Denny Miller) - A surfer rides a tsunami from Hawaii and ends up on the island.
• Tongo the Ape Man (Denny Miller) - An actor for a Tarzan type ape-man role arrives on the island.