Lenny The Wonder Dog

Andy Richter

Lenny

Sammy Kahn

Zach

Stephanie Sherrin

Becky

Joe Morton

Dr. Island

Craig Ferguson

Dr. Richard Wagner

Michael Winslow

John Wyndham

Andrew Shaifer

Hanky

Jeff Chase

Panky

Evan Adams

Razel

Oscar Isaac

Fartman

Rus Blackwell

Harley

Jeffrey William Evans

Chief Greenwald

Kathy Kinney

Lisa Lathers

Damaris Justamante

Mayor Jenkins

Paola Turbay

Mrs. Ripley

Camila Banus

Rainbow

P.C. Martinez

Bodyguard

Graham Purdy

Jeremy