Jack Warner
饰 Det. Insp. Fred Fellows
Yolande Donlan
饰 Jean Sherman
Michael Goodliffe
饰 Clyde Burchard
John Le Mesurier
饰 Mr Simpson
Moira Redmond
饰 Joan Simpson
Christine Bocca
饰 Mrs Simpson
Norman Chappell
饰 Andy Roach
Ronald Lewis
饰 Det. Sgt. Jim Wilks
Peter Ashmore
饰 Mr. Bunnell (uncredited)
Timothy Bateson
饰 Porter (uncredited)
Geoffrey Bayldon
饰 Constable at Murder Scene (uncredited)
Basil Beale
饰 Police Clerk (uncredited)
Gerald Campion
饰 Glazier (uncredited)
Reginald Marsh
饰 Hilders (uncredited)
Fred Ferris
饰 Information Sergeant (uncredited)
John Horsley
饰 Supt. Ramsey (uncredited)
