Steven Spielberg Presents Animaniacs, usually referre to as Animaniacs, is an American animated series, distributed by Warner Bros. and produced by Amblin Entertainment. The cartoon was the second animated series produced by the collaboration of Steven Spielberg and Warner Bros. Animation during the animation renaissance of the late 1980s and early 1990s. The studio's first series, Tiny Toon Adventures, was a success among younger viewers, and a series that attracted a sizable number of adult viewers. The Animaniacs writers and animators, led by senior producer Tom Ruegger, used the experience gained from the previous series to create new animated characters that were cast in the mold of Chuck Jones and Tex Avery's creations.