Andrew Overtoom

After graduating, Overtoom attended Pasadena's yearly Animation Celebration, where his feature film No Parachute caught the attention of producer Mike Girard. Girard hired Overtoom onto Nickelodeon’s The Angry Beavers, where he worked as an animation timer.

Overtoom has also served as an animation timer on Family Guy episodes, a sheet timer for The Mighty B! and as an animation timer on the Disney Channel animated series Phineas and Ferb. He served as the supervising animation director on the Cartoon Network series Clarence and the Disney XD animated series Billy Dilley's Super-Duper Subterranean Summer. In early 2018, Overtoom returned to SpongeBob SquarePants to work on season 12 as an animation director. He was subsequently hired as CG Animation Director at Paramount Pictures for the first all CG SpongeBob feature The SpongeBob Movie: Sponge on the Run, where he created a CG animation style constructed from commonly used techniques of 2D and stop-motion animation, relying heavily on his past work on SpongeBob and also Nick Park's Oscar winning Wallace and Gromit short films The Wrong Trousers and A Close Shave. Overtoom was then promoted to Head of Character Animation (HOCA) by Paramount in the summer of 2018. In 2019, he headed to Montreal to continue production on the new SpongeBob feature film at Mikros Image, continuing his duties as CG Animation Director and Head of Character Animation (HOCA). The SpongeBob feature is set for an August 2020 release.

In 2009, Overtoom wrote, animated, and directed the animated short film All in the Bunker.

In August 2001, Overtoom began the production of his first feature film My Life with Morrissey, which he wrote, directed and photographed. The film premiered in 2003. Critic Stephen Dalton of The Times, in a positive review, wrote that "[B]ehind its high-camp, irreverent tone, Overtoom's film is clearly a twisted tribute." The film won the Audience Award at the 2003 Black Point Film Festival in Wisconsin.

Overtoom moved as an animation director over to another Nickelodeon series, SpongeBob SquarePants, since the show had begun in 1999. Laura Fries of Variety praised his work on the 2002 special "SpongeBob's House Party": "Overtoom has created a very stylistic and vivid animated world that smacks of retro pastiche."

John Andrew Overtoom (born 1962) is an American animation director, writer, photographer, and cinematographer best known for his work on the 2020 Paramount Pictures 3D animated feature film The SpongeBob Movie: Sponge on the Run, where he served as CG Animation Director and Head of Character Animation (HOCA). He was Supervising Animation Director on the Cartoon Network series Clarence and worked on the Disney animated television series Billy Dilley's Super-Duper Subterranean Summer where he was a writer and animation supervisor, as well as on the Nickelodeon animated television series SpongeBob SquarePants, for which he was nominated for the Emmy Awards in 2004, 2007 and 2011. My Life with Morrissey is his award-winning first feature film, which he wrote, directed and photographed, and is distributed by MVD.