Reparto y equipo

Freddie Francis

Joan Crawford Dr. Brockton

Michael Gough Sam Murdock

Bernard Kay Inspector Greenham

Kim Braden Anne Brockton

David Griffin Malcolm Travers

John Hamill Cliff

Thorley Walters Magistrate

Jack May Dr. Selbourne

Geoffrey Case Bill

Robert Hutton Dr. Richard Warren

Simon Lack Colonel Vickers

David Warbeck Alan Davis

Chloe Franks Little Girl

Maurice Good Reporter

Joe Cornelius Trog

Herman Cohen

John Scott

Desmond Dickinson

Oswald Hafenrichter