Leslie Perrins
— Inspector Darrow
Judy Gunn
— Carole Foster
Russell Thorndike
— Clive Bristow
Michael Hogan
— Samuel Morton
Ivor Barnard
— Arthur Stannard
Eliot Makeham
— John Rutherford
George Zucco
— James Renton
Leo Britt
— Tony Freyne
D.J. Williams
— Fritz Klein
Hector Abbas
— Otto Bemberg
Cyril Smith
— McNair
Barbara Everest
— Mrs. Foster