List of Odd Squad episodes

First Appearances: Dalila Bela as Agent Olive, Filip Geljo as Agent Otto, Millie Davis as Ms. O and Sean Michael Kyer as Agent Oscar.

First Appearances: Anna Cathcart as Agent Olympia and Isaac Kragten as Agent Otis.
Final Appearances: Dalila Bela as Agent Olive and Filip Geljo as Agent Otto.

First Appearances: Olivia Presti as Agent Oona.

• Otis and Olympia need the help of Odd Todd (who has become a gardener) to solve an odd case.
• Because Otis thinks Olympia can't stop working, Olympia and Otis agree to go out for lunch.

• To have a pizza party, security agents Owen and Ohio secretly provide backup on Otis and Olympia's case.
• Olympia and Otis accidentally let an un-lucky nickel get loose out of headquarters.

• Villains, Shapeshifter, Fladam, Jamie Jam, Evil Mime, Noisemaker, and Father Time break into Odd Squad headquarters.
• Olympia and Ocean try to catch a loose creature before The Big O finds out.

At a gathering of Odd Squad scientists called Lab Con located in Odd Squad Academy, president of the scientists, Obbs starts mind controlling every scientist except for Oscar to take over Odd Squad; Oscar and Ms. O with the help of Oona must stop Obbs and his evil scheme.

• After Ms. O gives Olympia a new room to work in, all the agents want a piece of it.
• Otis and Noisemaker need to go back to headquarters while the tubes are down for maintenance.

• The Puppymaster turns all agents except Olhm into puppies.
• Because Dr. O catches a case of "The Sillies", Ocean and Oona must collect all the ingredients to make a curing antidote.

• Otis, being unaware that he had to get Olympia a gift for their "Halfiversary", races to find one.
• Ms. O, Ocean, Otis, and Olympia try to determine what kind of creature will hatch from an egg.

• Otis and Olympia discover how different Odd Squad headquarters are at night and struggle to get their work done.

Note: Martin Kratt and Chris Kratt make an appearance at the beginning of this episode parodying a beginning of a generic episode of Wild Kratts.

• Ms. O accidentally calls Partners, Otis and Olympia and partners, Oriele and Orielle to return a magical orb to Cloud Town, the land of the unicorns. Because all of the agents want to visit Cloud Town and Ms. O refuses to let 4 agents take the case, she decides that they'll settle it by seeing Coach O.

• When a virus that turns people into cakes spreads through Headquarters, Agents, Otis and Olympia try to figure out what's causing it.
• Before agents, Otis and Olympia can win Agents of the Month, Otis must finish filing his paperwork.

• Because Ms. O's office is under maintenance, Olympia suggests that Ms. O can work downstairs.
• Otis, Olympia, and Ms. O try to tracking down Ms. O's old partner, O'Donahue, and defeat a trio of mimes.

• By dropping a time-travel gadget, Oona gets stuck in a time loop and brings Otis and Olympia along with her.
• The villain, Backwards Bob has set off a backwards bubble in headquarters and can only have 20 questions to ask from him on how to get the forward bubble.

• Otis and Olympia's misunderstandings of the importance of maintenance displease the maintenance workers and cause them to switch jobs for a day.
• Olympia, with Otis gets trapped in her computer.

• When Ms. O gets trapped in a mirror, and Ms. O's reflection escapes, Olympia, Otis, and Oona must predict where Opposite Ms. O will be to catch her and free the real Ms. O.

• Because Oksana refuses to cook for Odd Squad unless Ms. O gives her her desires, Otis and Olympia take Oksana's job for the day.

• Otis and Olympia want to participate in Rookie Night before it is over.
• Fladam and Lady Bread argue over who the oddest villain is, Meanwhile, Olympia and Otis help Delivery Doug make egg salad sandwiches.

• Because Oona thinks the cherry-on-top-inator gadget is useless, Ocean, Orchid, Olympia, Otis, and Ohlm try to convince her not to destroy it.

• Otis, Olympia, and Oona help a man who is slowly turning into spaghetti

Note: This episode is filmed in the character, Sir's First person point of view.

• Olympia tries to get into Agent Orchid's Talent show.

• Olympia is tracking down the villain who gave her a 1 out of 10 on the Odd Squad rankings.

• A villain takes Ms. O's voice.

• While Olympia is on her vacation, Orchid and Ohlm have trouble with a case and Otis helps them.

• A creature is turning agents into stone and Oona and Ocean with the help of Oonabots try to stop it.

• Otis goes undercover as Evil Ninja to recover a stolen gadget from The Yum-Yum Twins.

• Olympia and Otis with the help of Delivery Debbie go undercover to stop a group of villains who call themselves The Breakfast Club.

• After finding out Dr. O is leaving Odd Squad to become a doctor in space, Olympia tries to throw her a goodbye party on a low-budget.

• Olympia is convinced that there is a ghost roaming headquarters while Otis disagrees and tries to tell Olympia that ghosts do not exist.

• While waiting out a storm and transporting a creature, Owen tries to convince the new recruit, Ozlyn to join the security department.

• Special task force agents, Xavier and Xena arrive to shut down the Odd Squad headquarters unless the agents there stay on a budget.

• Oona helps Dr. O's former replacement, Olly cure patients with odd ailments.

• Otis and Olympia track down a villain who is causing oddness in a strange town called Negative Town.

• Otis tries to help Oona pass her lab director's test that she must pass to stay at Odd Squad.

• Otis and Olympia try to solve a case while babysitting Baby Genius.

• Oona accidentally switches bodies with a fly and Ocean tries to help her get her normal body restored.

• While Ms. O is on a secret mission, Otis, Olympia, Orchid, Owen, Ocean, and Coach O have a competition to see who can keep their hands on the chair the longest; whoever is the last one touching the chair will be Ms. O for the day.

• Xena and Xavier force Otis and Olympia to solve a case with an obnoxious robot named Omega.

• Otis and Olympia compete against rival Odd Squad agents to catch a loose creature.

• Otis and Olympia must figure out what is causing some town people to slow down.

• Villains need the help of Odd Squad to stop a giant robot.

• Donnie gets lost in headquarters on the day of Ronnie's wedding.

• Werewolf agent Olaf is turning back into a boy.

• Otis struggles with a new jacket that is more high-tech than his old one.

• Odd Squad builds a replica of the villain's vault along with the town to intercept a stolen jetpack.

• Olympia must star in a game show where villains always win, while Otis and Oona try to retrieve a stolen gadget.

• After tracking down a villain named Sandman with her partner, Ozric, Ms. O's former assistant, Olympia (Saara Chaudry) returns to headquarters and Olympia (Anna Cathcart) struggles to go along while there is an agent in headquarters with her same name.

• Ms. O tells Olympia and Otis the story of the villains, Total Zeros.

• Olympia and Otis are tasked with calling a truce between feuding guests.

• While Odd Squad is on a picnic, Ms. O leaves headquarters in the hands of Hopkins, Mr. Fonts, Party Pam, and Logan the ogre.

• Odd Squad agents try to convince to the X's that Orson is a good agent before the X's kick Orson off the squad.

• Oona gets trapped into another dimension which is similar to the normal dimension except she is alone; now Oona must figure out a way to get back home.

When Noisemaker accidentally reveals information about a notebook, Olympia goes on a search party to find it, but later discovers the truth about her partner Otis.

Final Appearances: Anna Cathcart as Agent Olympia, Isaac Kragten as Agent Otis and Olivia Presti as Agent Oona.
Note: This is the final appearance of Millie Davis as Ms. O before being promoted to the Big O.

First Appearances: Valentina Herrera as Agent Opal, Jayce Alexander as Agent Omar, Alyssa Hidalgo as Agent Orla and Gavin MacIver-Wright as Agent Oswald.
Note: This is the first appearance of Millie Davis as the Big O rather than Ms. O.

• Omar has plans to surprise Orla with a 500th birthday party.
• In Quebec, Canada, the team accidentally gets locked out of its Mobile Unit van and need the help from a young fan of Odd Squad.

• The team is sent to the Museum of Natural Odd when an ancient stone warrior has been let loose.
• Agents Opal is upset when the Mobile Unit gets ranked low on the Odd Squad Magazine progress reports and starts trying to solve odd problems (along with Orla) so the team can get ranked higher; Omar and Oswald try to find a way to cheer Opal up before she and Orla get into some Odd trouble.

• The Mobile Unit is called to investigate on a train.
• The X's (Xuxa and Xeno) kick Agent Orla off the squad when a library book she took out 400 years ago is overdue.

• The team is sent to investigate an odd tunnel at Newport, Maine; however, while doing so, Omar gets trapped into a void.
• After Omar gets a case of "Clownitosis", Opal and Oswald must go into the Odd Woods in São Paulo, Brazil to collect ingredients for an antidote.

• The Mobile Unit is called to Odd Squad's top-secret Security facility.

• The Shadow tries to convince villains to join her Villain Network.

• There is a new villain named Mr. Unpredictable.

• The Odd Squad tube system has mysteriously been shut down.

• The Mobile Unit reports to the New York City Odd Squad to help with a big problem.

• An agent-in-training visits the Mobile Unit.

• When members of the Mobile Unit get turned into sandwiches, The Big O comes to the rescue.

• The Mobile Unit faces a series of odd challenges that only Orla knows how to stop.

• When villain Confetti Betty strikes the Odd Squad headquarters in the Arctic, the Mobile Unit returns to help; as they attempt to crack the villain's pattern, they must teach the agents how to solve cases for themselves.

• An Odd Squad gadget has been stolen and is being kept in a warehouse in Stockholm, Sweden run by robots; the team must take control of a robot and use coding to program it to retrieve the stolen gadget.

• The Big O tells the team what would of happened if she picked different agents to be in the mobile unit.

• Orla shares the story of how she was chosen to protect the 44-leaf clover to stop Jellybean Joe from causing oddness to the Mobile Unit van.

• When OSMU gets trapped in a snow globe, Agents Oxley and Olanda come to the rescue.

• Evil Sculptor wants to leave the Villain Network and offers to give the Mobile Unit top-secret info.

• OSMU goes undercover as villains at a hotel that the Shadow is staying at. Unfortunately proving her true identity.