"The tale of a workaholic dad-turned-dog who finds that being man's best friend shows him the most important job - being a great dad."
Tim Allen
as Dave Douglas
Kristin Davis
as Rebecca Douglas
Danny Glover
as Ken Hollister
Spencer Breslin
as Josh Douglas
Robert Downey Jr.
as Dr. Kozak
Zena Grey
as Carly Douglas
Joshua Leonard
as Justin Forrester
Jane Curtin
as Judge Claire Whittaker
Annabelle Gurwitch
as Justin Forrester's Attorney
Jarrad Paul
as Larry
Bess Wohl
as Dr. Gwen Lichtman
Philip Baker Hall
as Lance Strictland
Shawn Pyfrom
as Trey
Joel David Moore
as Pound Employee
Kevin Cooney
as Doctor
Craig Kilborn
as Baxter
Jeanette Brox
as Janey
Rhea Seehorn
as Lori
Koji Kataoka
as Monk
Casey Sander
as Leader
Mark Robert Ellis
as Football Coach
Jesse Heiman
as Pound Employee (uncredited)
Mic Rodgers
as Bus Driver
Eric Winzenried
as Animal Control Officer
Adam Hicks
as Quarterback
Michael Tyler Henry
as Obnoxious Player #1
Chris Weaver
as Protest Leader
Crystal the Monkey
as Capuchin (uncredited)
Linda Griffin
as Additional Voice (voice) (uncredited)
Brian Robbins
Director
William Fay
Executive Producer
David Hoberman
Producer
Alan Menken
Original Music Composer
Robert Simonds
Matthew Carroll
Gabriel Beristain
Director of Photography
Todd Lieberman
Juel Bestrop
Casting
Jeanne McCarthy
Daniel T. Dorrance
Art Direction
Leslie McDonald
Production Design
Ronald R. Reiss
Set Decoration
Ned Bastille
Editor
Molly Maginnis
Costume Design
Kenny Endoso
Utility Stunts
Michael Runyard
Chuck Duke
Animation
Howard R. Campbell
Lighting Artist
Tim Trella
Stunt Coordinator
Anita Hart
Karin Silvestri
Bill Walsh
Original Film Writer
Lillie Hayward
Don Tait
Cormac Wibberley
Screenplay
Marianne Wibberley
Geoff Rodkey
Jack Amiel
Michael Begler