Director
Cy Endfield
DIRECTOR
Writer
Leo Davis
WRITER
John Dickson Carr
Stars (in credits order)
Boris Karloff
Colonel March
Ewan Roberts
Insp. Ames
Richard Wattis
Cabot
Sheila Burrell
Joan Forsythe
Anthony Forwood
Jim Hartley
Ronald Leigh-Hunt
Ireton Bowlder
Patricia Owens
Betty Hartley (archiveFootage)
John Hewer
John Parrish
Joan Sims
Marjorie Dawson
Roger Maxwell
Maj. Rodman
Sonya Hana
Paula
Bernard Rebel
The Count
Dana Wynter
Francine Rapport
Nita Valerie
Librarian
Peter Butterworth
Bank clerk (uncredited)
Man leaving British Museum library (uncredited)
Pat Hagen
Police Constable at Bank (uncredited)
Victor Harrington
Customer in Bank (uncredited)
Charles Saynor
Police Constable (uncredited)
Marianne Stone
