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