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)
Ken Hughes
Black 13
Released
Bande-annonce