Dee Wallace

Donna Trenton

Danny Pintauro

Tad Trenton

Daniel Hugh Kelly

Vic Trenton

Christopher Stone

Steve Kemp

Ed Lauter

Joe Camber

Kaiulani Lee

Charity Camber

Billy Jayne

Brett Camber

Mills Watson

Gary Pervier

Sandy Ward

Bannerman

Jerry Hardin

Masen

Merritt Olsen

Professor

Frank Welker

Cujo (voice; uncredited)