Cast
Boris Karloff
Colonel March
Ronald Leigh-Hunt
Ireton Bowlder
Cy Endfield
Man leaving British Museum library (uncredited)
Peter Butterworth
Bank Clerk (uncredited)
Joan Sims
Marjorie Dawson
Richard Wattis
Cabot
Anthony Forwood
Jim Hartley
Roger Maxwell
Maj. Rodman
Dana Wynter
Francine Rapport
Ewan Roberts
Inspector Ames
Sheila Burrell
Joan Forsythe
Patricia Owens
Betty Hartley
Marianne Stone
Customer in Bank (uncredited)