Underdog

Jim Belushi as Dan Unger Alex Neuberger as Jack Unger Taylor Momsen as Molly Michele Proude as Office Worker #2 Peter Dinklage as Dr. Simon Barsinister Samantha Bee as Principal Bates Wilder as Cop John Franchi as Observer Jason Lee as Shoeshine / Underdog (voice) Susan Garfield as Office Worker Patrick Warburton as Cad Larry Vigus as Security Guard John DiMaggio as Bulldog / Supershep 4 (voice) Phil Morris as Supershep 1 (voice) Amy Adams as Polly Purebred (voice) Sujoy De as Office Worker #1 Ezra Buzzington as Referee Diana Shneider as Police Secretary Susie Castillo as Diana Flores Michael Massee as Supershep 2 (voice) Danny Mastrogiorgio as Crazy Dog (voice) John Slattery as Mayor Brad Garrett as Riff Raff (voice) Jay Leno as Jay Leno Frank Ridley as Police Sergeant Cam Clarke as Little Brown Dog / Supershep 3 (voice) Jess Harnell as Astronaut (voice)

Aaron Vexler Stunts Frederik Du Chau Director David Eggby Director of Photography Jonathan Glickman Producer Joe Piscatella Screenplay, Story Jon H. Epstein Stunt Coordinator Garreth Stover Production Design Roger Birnbaum Producer Gary Barber Producer Philip A. Patterson First Assistant Director Kimberly Shannon Murphy Stunts Adam Rifkin Novel, Screenplay, Story Stuart F. Wilson Stunts Randy Edelman Original Music Composer Caroline Vexler Stunts Hoyt Yeatman Visual Effects Supervisor Kelly Cronin Script Supervisor Ben Shepherd Visual Effects Supervisor