Calificación
Reparto

Peter Reynolds
Stephen

Rona Anderson
Claire

Patrick Barr
Robert

Lana Morris
Marion

Genine Graham
Stella

Michael Balfour
Joe

John Forrest
Wally

Viola Lyel
Mrs. Barclay

Martin Walker
Prof. Barclay

John Le Mesurier
Inspector

Martin Benson
Bruno

Stephen Boyd
Policeman (uncredited)