Underdog Cast
The cast of Underdog.
Jason Lee
as Shoeshine / Underdog (voice)

Portrayed the character Shoeshine / Underdog (voice).

Jim Belushi
as Dan Unger

Portrayed the character Dan Unger.

Patrick Warburton
as Cad

Portrayed the character Cad.

John Slattery
as Mayor

Portrayed the character Mayor.

Peter Dinklage
as Dr. Simon Barsinister

Portrayed the character Dr. Simon Barsinister.

Brad Garrett
as Riff Raff (voice)

Portrayed the character Riff Raff (voice).

Taylor Momsen
as Molly

Portrayed the character Molly.

Amy Adams
as Polly Purebred (voice)

Portrayed the character Polly Purebred (voice).

Alex Neuberger
as Jack Unger
Larry Vigus
as Security Guard
Bates Wilder
as Cop
Frank Ridley
as Police Sergeant
Alexander 'Alex' Garde
as Small Boy
Diana Shneider
as Police Secretary
Samantha Bee
as Principal
John Franchi
as Observer
Ezra Buzzington
as Referee
Jay Leno
as Jay Leno
Susie Castillo
as Diana Flores
Phil Morris
as Supershep 1 (voice)
Michael Massee
as Supershep 2 (voice)
Cam Clarke
as Little Brown Dog / Supershep 3 (voice)
John DiMaggio
as Bulldog / Supershep 4 (voice)
Danny Mastrogiorgio
as Crazy Dog (voice)
Jess Harnell
as Astronaut (voice)
Susan Garfield
as Office Worker
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