Identical 9-year-olds from very different backgrounds: orphaned Amanda and wealthy Alyssa meet at summer camp and decide to switch places -- and play matchmaker between Alyssa's dad, Roger, and the kind social worker who cares for Amanda.

Kirstie Alley
as Diane Barrows

Steve Guttenberg
as Roger Callaway

Ashley Olsen
as Alyssa Callaway

Mary-Kate Olsen
as Amanda Lemmon

Jane Sibbett
as Clarice Kensington

Philip Bosco
as Vincenzo

Michelle Grisom
as Carmen

Desmond Robertson
as Frankie

Tiny Mills
as Tiny

Shanelle Henry
as Patty