David MacDonald Director Mark Stevens Paul Smith Actor Jean Kent Louise Parker Actor Garry Marsh Inspector Foster Actor John Bentley Clark Sutton Actor Jack Lambert John Parker Actor Leslie Perrins Doctor Morrison Actor Dianne Foster Dianne Wrigley Actor John Gilling Screenwriter Robert S Baker Producer Monty Berman Producer, Cinematographer Reginald Beck Film Editing William Hill-Bowen Original Music Andrew Mazzei Art Director