Tina Majorino as Toni Whitney

Chelsea Field as Thalice Whitney

Shane Meier as Steve Whitney

Aidan Pendleton as Paula Whitney

Shirley Broderick as Mrs. McCann

Keith Carradine as Harry Whitney

Andrea Libman as Mary May

Keith Szarabajka as Billy Baker

Joshua Jackson as Mark Baker

Jay Brazeau as Griff Armstrong

Bill Dow as Ellwyn

Joy Coghill as Betsy

Stephen Dimopoulos as Dan Snow

Frank C. Turner as John Miller

Kristian Ayre as Gerald

Gregory Smith as Bobby

Ric Reid as Henry White

Duncan Fraser as Jack Adams

Gary Jones as Lance Tindall

Teryl Rothery as Jennifer Fife

Douglas Newell as Lou

Annette O'Toole as Adult Voice of Toni

Tory the Sea Lion as Andre The Seal