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