Odd Squad

Seasons 1-2 (2014-2019)

The first two seasons of Odd Squad stars two agent who are members of the Odd Squad Precinct 13579. The main agents are Olive and Otto in the first season and Olympia and Otis in the second season. The episode begins with the agents helping somebody with an odd problem. The agents then go back to headquarters by traveling through tubes. After being in headquarters the agents are called up to Oprah (Miss O)'s office. They are then sent to fix a math-related odd problem. Many times the problem is caused by a villain. Another Odd Squad agent or a citizen may also be the cause of a problem. The agents use math (and sometimes computer coding) to solve the problem. The agents usually mess up sometimes before they fix the problem. Math concepts were taught using the Mathroom in Season 1 and watch tablets in Season 2.

Season 2 included many special episodes, including movies and shorts.

Season 3: Mobile Unit

Season 3 of Odd Squad was the first season not set in Precinct 13579. Instead, it focused on a Mobile Unit that flew around the world in a flying van to solve oddness. The season also taught more STEM (science, technology, engineering, and math) and geography, mostly simple science and "math in the science." 33 total episodes in this season are split into two parts.

Season 4: UK

Season 4 of Odd Squad is named "Odd Squad UK." Fred Rogers Productions announced on October 4, 2023 that a fourth season of Odd Squad would premiere in 2024. It will be named "Odd Squad UK." It was only filmed in the United Kingdom in Manchester, England. CBBC produced Season 4 along with PBS Kids, TVOKids, and SRC. It stars a mostly British cast. It has 12 episodes. Season 4 started on October 1, 2024 and ended on October 24, 2024.

Season 4 stars agents Orli and Ozzie. They solve odd problems in the United Kingdom. The format of the episodes is mostly similar to the format of Seasons 1 and 2. This season includes both North American and British educational topics.

Odd Squad UK was renewed for a second season (also the fifth season of the series) in 2025. Season 5 was filmed from July to October 2025. The season is set to start in Spring 2026 and it will be the first season of the series to feature the same main agents for a second season.

OddTube

OddTube is a series of short videos on PBS Kids. One agent talks about the setting of Odd Squad by interviewing agents and answering questions. There would be a sponsor which taught basic math, such as skip counting and geometry. There are two seasons. Season 1 aired in 2016 and 2017 during the second season of Odd Squad with Agent Olympia as the presenter. In 2020, during Season 3A of Odd Squad, Agent Orla was the presenter.

Odd Squad: Book of Games and Gadget Testers

Odd Squad: Book of Games and Gadget Testers are two series of short videos on PBS Kids with the Odd Squad Mobile Unit as main characters during season 3B of the show. Both series started and ended in 2022. The presenters of Book of Games were Agents Oswald and Osmerelda. The presenters of Gadget Testers were Agents Omar and Orla.

Odd Squad: The Movie

Odd Squad: The Movie is a 2016 Odd Squad television movie. The movie has agents from both seasons 1 and 2 and aired during Season 2. The movie is about Odd Squad getting shut down because of a team of adults called the Weird Team. The Weird Team is a group of adults who hide odd problems instead of fixing them.

Odd Squad: World Turned Odd

Odd Squad: World Turned Odd is a 2018 Odd Squad television movie that aired during Odd Squad Season 2. The movie is about Agents Olympia, Otis, and Oona. They go back in time to 1983 to visit Agent Oprah becoming Miss O but undo every Odd Squad case ever fixed.

Odds and Ends

Odds and Ends is the Season 2 finale of Odd Squad. The final two episodes, "Who is Agent Otis?" and "Odds and Ends," can be put together to become one movie. It aired in 2019.

Odd Squad: Odd Beginnings

Odd Squad: Odd Beginnings is the newest Odd Squad television movie. It aired in 2020. The movie is about how the Odd Squad Mobile Unit started but it is not the season 3 premiere.

The Odd Squadcast

The Odd Squadcast is a seven-episode podcast series that released episodes during late 2020. The Big O (Millie Davis) was the main presenter.

Odd Squad Gaming Unit

Odd Squad Gaming Unit is an upcoming let's play series of fifty-two short-form videos. Each video will be five minutes long. The series is made to promote games on the PBS Kids Games App. Filming started on May 5, 2025, and ended on June 15, 2025. The series will star two young and new Odd Squad agents who solve problems using teamwork and mathematics. The series is set to start in late 2025.

Main

• Dalila Bela as Agent Olive (season 1) Olive is a short 12-year-old investigation agent who works at Precinct 13579. She is known for her seriousness at almost all times, except when she is solving a sports-related case. Her partner is Agent Otto. In the episode "O is Not for Over," she is promoted to a management agent and runs over own precinct with her partner.
• Filip Geljo as Agent Otto (season 1) Otto is a tall 10-year-old investigation agent who works at Precinct 13579. He is a fun-loving agent and loves music by his favorite band, Soundcheck. His partner is Agent Olive. In the episode "O is Not for Over," he is promoted to a management agent and runs his own precinct with his partner.
• Millie Davis as Oprah/Big O (seasons 1–3) Oprah plays the role of Ms. O in the first two seasons of the series and the Big O in the third season of the series. She is one of the only original cast members to stay in all three seasons of Odd Squad. She is another serious character who often yells at agents. Her age is unknown. It is assumed that she is thousands of years old. Millie Davis was 7 years old when the first season of the series began. She was 14 years old when she left the series and 15 when the third season ended.
• Sean Michael Kyer as Agent Oscar (seasons 1–2) Oscar is the president of the Odd Squad scientists. He was 11 years old in the first season and 12 in the second season. He worked in Precinct 13579 running the science and gadgets department until the episode "Oscar Strikes Back." He was the first Odd Squad scientist and created the department.
• Anna Cathcart as Agent Olympia (season 2) Olympia is an energetic 11-year-old investigation agent who works at Precinct 13579. She is the main character in the second season of the series. She is also the host of the first season of OddTube. Her partner is Agent Otis. She is often very cheerful and silly. She loves pandas and working at Odd Squad.
• Isaac Kragten as Agent Otis (season 2) Otis is an investigation agent who works at Precinct 13579. His partner is Agent Olympia. He is very talented and serious. His attitude is similar to Olive's. In "Who is Agent Otis?" he reveals he was raised by villain ducks. He is afraid of them because he is worried it is his duck family returning to get him. He is one of the only agents who wasn't trained at the Odd Squad academy. Instead, he was personally trained by Ms. O.
• Valentina Herrera as Agent Opal (season 3) Opal is a mostly serious 10-year-old agent. She was the leader of the Odd Squad Mobile Unit (also called OSMU) during the first part of the third season of Odd Squad. Before joining the Mobile Unit, she used to work in the Arctic Precinct. She is proud to be a member of Odd Squad. Her partners were agents Omar, Orla, and Oswald. She leaves the Mobile Unit in "End of the Road" to fight oddness with her sister.
• Jayce Alexander as Agent Omar (season 3) Omar is a chipper agent in the Odd Squad Mobile Unit. He loves to travel and collect souvenirs from his solved cases. He used to work with Opal as a partner before joining OSMU and during her time working at OSMU. His partners are Orla, Oswald, and Osmerelda.
• Gavin Maclver-Wright as Agent Oswald (season 3)
• Alyssa Hidalgo as Agent Orla (season 3)
• Glee Dango as Agent Osmerelda (season 3)
• Shazdeh Kapadia as Orpita/Little O (season 3)
• Asha Soetan as Agent Orli (season 4)
• Alexander Shaw as Agent Ozzie (season 4)
• Samir Simon Keegan as Agent Onom (season 4)
• Shelly Lagodinsky as Captain O (season 4)

Recurring