Reparto y equipo

Lewis Teague

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)

Clare Torao Reporter

Arthur Rosenberg Roger Breakstone

Robert Craighead Joe MaGruder

Robert Singer

Daniel H. Blatt

Charles Bernstein

Jan de Bont

Neil Travis