Hugh Sinclair

Character: Simon Templar

Sally Gray

Character: Mary Langdon

Arthur Macrae

Character: Monty Hayward

Cecil Parker

Character: Rudolph Hauser

Leueen MacGrath

Character: Valerie

John Warwick

Character: Gregory

Manning Whiley

Character: Marko

Felix Aylmer

Character: Leighton

Ivor Barnard

Character: Emil

Gordon McLeod

Character: Inspector Claud Teal

Roddy Hughes

Character: Valet (uncredited)

Eric Clavering

Character: Reporter at door (uncredited)

Noel Dainton

Character: Commissaire (uncredited)