A lab accident gives a beagle named Shoeshine some serious superpowers -- a secret that the dog eventually shares with the young boy who becomes his owner and friend.
Jason Lee
Shoeshine / Underdog (voice)
Peter Dinklage
Dr. Simon Barsinister
Jim Belushi
Dan Unger
Patrick Warburton
Cad
Alex Neuberger
Jack Unger
Taylor Momsen
Molly
John Slattery
Mayor
Amy Adams
Polly Purebred (voice)
Brad Garrett
Riff Raff (voice)
Samantha Bee
Principal
Timothy Crowe
Police Chief
Larry Vigus
Security Guard
Mario Mariani
Police Officer
Bates Wilder
Cop
Alexander 'Alex' Garde
Small Boy
Christopher Francis Byrnes
Mailman (as Christopher Byrnes)
Joe Siriani
News Stand Guy (as Joseph Siriani)
Sujoy De
Office Worker #1
Michele Proude
Office Worker #2
Albert M. Chan
Geek Worker
Jon Pierce
Hot Dog Vendor
Susie Castillo
Diana Flores
Bob Jaffe
Professor
Bruce-Robert Serafin
City Worker (as Bruce Serafin)
Lonnie Farmer
Passerby
Anthony Estrella
Male School Teacher (as Tony Estrella)
Malik McMullen
Bomb Squad Officer
Aaron Dorsey
Little Boy
Walter Covell
Old Man
Kate Lohman
Housewife
Lewis D. Wheeler
Geek with Glasses
Ellen Withrow
Female Teacher
John M. Deluca
Newscaster
Frank Ridley
Police Sergeant
Grady Justice
College Guy
Courtney O'Reagan
College Girl
Rebekah Aramini
Fox Collar Lady
Richney Fischer
Baseball Dad
Joe Stapleton
Cat Burglar Police #1
Armen Garo
Cat Burglar Police #2
Daniel Kirby
News Director
Stephen James Kidd
Bomb Squad Member (as Steve Kidd)
Rena Maliszewski
Mother
Diana Shneider
Police Secretary
Barry Blair
SWAT Captain
Bob Boehm
Bomb Squad Officer #2 (as Robert Boehm)
Lincoln P. Sisson
Bomb Squad Officer #3
Gabriel Field
Lyle
Harry L. Thomas
Police Artist
Amy Tanner
Kissing Girl
Nicole Kopka
Jogger in Park
Adam McCarthy
Capitol City Security
Roy Souza
Capitol City Cop
Tom Paolino
Scott Dittman
Hot Dog Contestant
Ezra Buzzington
Referee
Chris Andrew Ciulla
Fireman (as Chris Ciulla)
Jay Leno
Phil Morris
Supershep 1 (voice)
Michael Massee
Supershep 2 (voice)
Cam Clarke
Little Brown Dog / Supershep 3 (voice)
John DiMaggio
Bulldog / Supershep 4 (voice)
Danny Mastrogiorgio
Crazy Dog (voice)
Jess Harnell
Astronaut (voice)
Joe Bucaro III
Goon #1
Stuart F. Wilson
Goon #2
John Franchi
Observer (uncredited)
Susan Garfield
Office Worker (uncredited)
Michael Tyler Henry
Jack Unger (voice)
Frederik Du Chau
Director
Adam Rifkin
Novel
Craig A. Williams
Screenplay
David Eggby
Director of Photography
Roger Birnbaum
Producer
Joe Piscatella
Gary Barber
Jonathan Glickman
Randy Edelman
Original Music Composer
Erin Stam
Co-Producer
Boone Narr
Animal Coordinator
Robert L. Sephton
Sound Designer
Story
Todd Arnow
Executive Producer
Supervising Sound Editor
Peggy Nicholson
Hair Department Head
Bob Higgins
Gail Goldberg
Casting Director
Charles Martin Inouye
Supervising Music Editor
Kelly Cronin
Script Supervisor
Ellen M. Hillers
Second Assistant Director
Eric Ellenbogen
Donna E. Bloom
Unit Production Manager
Philip A. Patterson
First Assistant Director
Hoyt Yeatman
Visual Effects Supervisor
Paul J. Lombardi
Special Effects Coordinator
Rebekah Rudd
Andy Fowler
Visual Effects Producer
Tanya Noel Hill
Music Editor
Montez A. Monroe
Production Coordinator
Rob Duncan
Bob Brown
Second Unit Director
Mark Dornfeld
Gayle Busby
Ben Shepherd
Lisa Shaftel
Scenic Artist
Jon H. Epstein
Stunt Coordinator
Caroline Vexler
Stunts
Jimmy P. Wong
Shawn Kautz
Aaron Vexler
Joanne Lamstein
Ian Mclaughlin
Kimberly Shannon Murphy
Garreth Stover
Production Design
Maggie Martin
Set Decoration
Tom Finan
Editor
James F. Truesdale
Art Direction
Gary Jones
Costume Design
Jay Polstein
Joe Rossi
Makeup Department Head
