The Baker family, while on vacation, find themselves in competition with a rival family of eight children.
Steve Martin
Tom Baker
Eugene Levy
Jimmy Murtaugh
Bonnie Hunt
Kate Baker
Tom Welling
Charlie Baker
Piper Perabo
Nora Baker-McNulty
Hilary Duff
Lorraine Baker
Carmen Electra
Sarina Murtaugh
Jaime King
Anne Murtaugh
Taylor Lautner
Eliot Murtaugh
Alyson Stoner
Sarah Baker
Jonathan Bennett
Bud McNulty
Jacob Smith
Jake Baker
Liliana Mumy
Jessica Baker
Morgan York
Kim Baker
Kevin G. Schmidt
Henry Baker
Forrest Landis
Mark Baker
Brent Kinsman
Nigel Baker
Shane Kinsman
Kyle Baker
Blake Woodruff
Mike Baker
Alexander Conti
Kenneth Murtaugh
Melanie Tonello
Becky Murtaugh
Robbie Amell
Daniel Murtaugh
Courtney Fitzpatrick
Lisa Murtaugh
Madison Fitzpatrick
Robin Murtaugh
Shawn Roberts
Calvin Murtaugh
William Copeland
The Commodore
Peter Keleghan
Mike Romanow
Sam Kalilieh
Doctor
Damon Runyan
Tennis Pro
Graham Losee
Theatre Usher
Seth Howard
Clam Bake Server
Matthew Knight
Theatre Kid
Lee MacDougall
Doobner Dad
Jenny Parsons
Doobner Mom
Dylan Rosenthal
Doobner Older Son
Haylee Wanstall
Doobner Daughter
Ely Henry
Doobner Younger Son
Tre Smith
Security Guard
Adam Shankman
Clam Bake Chef
Shawn Levy
Hospital Intern
Enid Rose
Announcer at Graduation
Kristen Dulmage
Clam Bake Piano Player
Ben Falcone
Theatre Patron
Kelly Keaton
Phillip Brock
Juliette Goglia
Sara Van Horn
Nancy Daly
Kathryn Joosten
Resmine Atis
Theatre Patron (uncredited)
John Eric Brown
Train passenger (uncredited)
Michael Comrie
Sailor (uncredited)
Talia Russo
Lifeguard (uncredited)
Konstantin Shaburov
Waiter at the Party (uncredited)
Theatre patron
