Shigeru Mizuki
Springer has collaborated with various animation veterans such as Lynne Naylor, Chris Reccardi, Alex Hirsch, Craig McCracken, Genndy Tartakovsky, Paul Rudish, Rumen Petkov, Rob Renzetti, Maxwell Atoms, C. H. Greenblatt, Chris Savino, Stephen Hillenburg and John Kricfalusi. Besides "Billy Dilley", he has created numerous pilots for Cartoon Network and Adult Swim that, although never made into full series, have developed cult followings. Springer's cartoons are unique for their inclusion of extended gags, anthropomorphism and off-model poses. Springer has cited Richard Scarry, Sergio Aragonés, Frank Frazetta, Vaughn Bodē, Akira Toriyama, Hideshi Hino, Shigeru Mizuki and Hugo Pratt amongst his influences.