Steve Martin and Bonnie Hunt return as heads of the Baker family who, while on vacation, find themselves in competition with a rival family of eight children, headed by Eugene Levy,
as Tom Baker
as Jimmy Murtaugh
as Kate Baker
as Charlie Baker
as Nora Baker-McNulty
as Lorraine Baker
as Sarina Murtaugh
as Anne Murtaugh
as Eliot Murtaugh
as Sarah Baker
as Bud McNulty
as Jake Baker
as Jessica Baker
as Kim Baker
as Henry Baker
as Mark Baker
as Nigel Baker
as Kyle Baker
as Mike Baker
as Kenneth Murtaugh
as Becky Murtaugh
as Daniel Murtaugh
as Lisa Murtaugh
as Robin Murtaugh
as Calvin Murtaugh
as The Commodore
as Mike Romanow
as Doctor
as Tennis Pro
as Theatre Usher
as Clam Bake Server
as Theatre Kid
as Doobner Dad
as Doobner Mom
as Doobner Older Son
as Doobner Daughter
as Doobner Younger Son
as Security Guard
as Clam Bake Chef
as Hospital Intern
as Announcer at Graduation
as Clam Bake Piano Player
as Theatre Patron
as Theatre Patron
as Theatre Patron
as Theatre Patron
as Theatre Patron
as Theatre Patron
as Theatre Patron
as Theatre Patron (uncredited)
as Train passenger (uncredited)
as Sailor (uncredited)
as EMT (uncredited)
as Lifeguard (uncredited)
as Waiter at the Party (uncredited)