Sito's cartooning career began with him working on cartoons for Dixie Cups, as well as gag writing for Playboy magazine's comic series,
Little Annie Fanny, under his instructor, Harvey Kurtzman. and
Fat Albert and the Cosby Kids (1983–1985).) to animate on Disney/Amblin's Academy Award-winning hit film
Who Framed Roger Rabbit. Returning to Los Angeles in 1988, Sito became a mainstay of the Disney Feature Animation division, contributing to the classic films
The Little Mermaid,
Beauty and the Beast,
Aladdin,
The Lion King,
Pocahontas,
Fantasia 2000, and
Dinosaur. where he was awarded the title President Emeritus. He co-directed the animation for the
Warner Bros. 2001 movie
Osmosis Jones and contributed to other animated films such as
Looney Tunes: Back in Action (2003),
Garfield (2004) and
Son of the Mask (2005), the PBS TV series ''
Click and Clack's As the Wrench Turns (2008) and the 2006 Taiwanese short Adventures in the NPM'', which won first prize at the 2006 Tokyo Anime Festival. Tom Sito has lectured about animation around the world and has taught animation and animation history at
UCLA Film School, The
American Film Institute, Woodbury College and Santa Monica College. He became an instructor at the
USC School of Cinematic Arts in 1994 and in December 2014 was named Chair of the
John C. Hench Division of Animation and Digital Arts at USC. Tom Sito was interviewed for the PBS American Experience documentary "Walt Disney" (2014) for WGBH Boston. In 2015 he appeared in the documentary
Floyd Norman: An Animated Life. In 2020 he was interviewed for the
Reelz Channel documentary series
Autopsy: The Last Hours of Walt Disney. He wrote the story for the short "Flash in the Pain", which appeared in the 2016 animated film
Storks. In July 2017, Tom Sito was elected by his peers to the Board of Governors of The Motion Picture Academy of Arts and Sciences to represent the Short Films and Feature Animation Branch 2017-2020. Sito was vice-president of
ASIFA-Hollywood from 1992-2017. ==Books==