Richard Hannay
Sir Edmund Appleton
Chief Superintendent Lomas
Alex Mackenzie
Scudder
Sir Walter Bullivant
Bayliss
Marshall
Porton
David
Lord Rohan
Magistrate
Harkness
McLean
Tillotson
Fletcher
Lord Belthane
Woodville
Admiral
PC Forbes
Stewart
Renfrew
Donald
Martins
Lady Nettleship
Perryman
Milkman
Miller
The Scot
Crombie
Guide
PC Scott
Vicar
General (uncredited)
Nun (uncredited)