Cast of Cheaper by the Dozen 2

Steve Martin plays Tom Baker, the father of the Baker family who struggles to keep his family together during a summer vacation.

Eugene Levy portrays Jimmy Murtaugh, the rival father who challenges Tom Baker in various amusing contests.

Bonnie Hunt plays Kate Baker, the supportive mother who helps manage the chaos of family life.

Tom Welling takes on the role of Charlie Baker, the eldest son who navigates his personal relationships while managing family expectations.

Piper Perabo plays Nora Baker-McNulty, a confident daughter who is now married and balancing her adult life.

Hilary Duff portrays Lorraine Baker, the teenage daughter who begins to discover her independence.

Carmen Electra plays Sarina Murtaugh, the attractive daughter of the Murtaugh family who draws attention from the Baker boys.

Jaime King portrays Anne Murtaugh, a member of the rival family who joins in the summer competition.

Taylor Lautner plays Eliot Murtaugh, a young and energetic member of the Murtaugh family.

Alyson Stoner portrays Sarah Baker, a spirited daughter who contributes to the family's lively antics.

Jonathan Bennett plays Bud McNulty, a character involved with the Murtaugh family and their comedic rivalry.

Jacob Smith portrays Jake Baker, another of the Baker children who adds to the family dynamics.