Jim Reardon is an American screenwriter, director, and animator. While studying at CalArts in 1986, Reardon made his first student film, "Bring Me the Head of Charlie Brown." The film became a cult classic and found new popularity thanks to YouTube. He was hired by John Kricfalusi as a writer for the 1987–88 animated series "Mighty Mouse: The New Adventures." After that, he wrote many episodes for the first season of "Tiny Toon Adventures." In 1990, he was brought on as an animation director for "The Simpsons," and for many years he served as a director on the series.

He left the staff to work on the Pixar film "WALL-E," and also worked at Walt Disney Animation Studios on films such as "Wreck-It Ralph" and "Zootopia," which were directed by other "Simpsons" alumni, notably Rich Moore.