The Shaggy Dog

Tim Allen

Dave Douglas

Kristin Davis

Rebecca Douglas

Zena Grey

Carly Douglas

Spencer Breslin

Josh Douglas

Danny Glover

Ken Hollister

Robert Downey Jr.

Dr. Kozak

Joshua Leonard

Justin Forrester

Shawn Pyfrom

Trey

Bess Wohl

Dr. Gwen Lichtman

Jarrad Paul

Larry

Annabelle Gurwitch

Justin Forrester's Attorney

Jane Curtin

Judge Claire Whittaker

Philip Baker Hall

Lance Strictland

Joel David Moore

Pound Employee

Jeanette Brox

Janey

Kevin Cooney

Doctor

Rhea Seehorn

Lori

Craig Kilborn

Baxter

Koji Kataoka

Monk

Casey Sander

Leader

Courtney McLean

Bailiff

Laura Kightlinger

Ms. Foster - Teacher

Phaedra Nielson

Co-Worker

Eric Winzenried

Animal Control Officer

John Gatins

Homeless Guy

Jordyn Colemon

Tracy (as Jordyn Michelle Colemon)

Jan Devereaux

Woman in Restaurant

Jane Hajduk

News Reporter

Rocky La Porte

Police Officer

Mic Rodgers

Bus Driver

Leonard L. Thomas

Mercenary

Mark Robert Ellis

Football Coach

Adam Hicks

Quarterback

Michael Tyler Henry

Obnoxious Player #1

Darby C. Wilson

Obnoxious Player #2

Rick Shuster

Merc. Pilot

Christina Bergstrom

Stenographer

Luke Gregory

Animal Control Officer #2

David 'Goldy' Goldsmith

Man in Elevator

Janine Edwards

Kozak Secretary

Brandon Ray Olive

Grant - Strictland Office Worker

Chris Weaver

Protest Leader

Philip Pavel

Highway Driver (as Phil Pavel)

Crystal the Monkey

Capuchin (uncredited)

Linda Griffin

Additional Voice (voice) (uncredited)

Jesse Heiman

Pound Employee (uncredited)