Detective Inspector (uncredited)
Professor Mitchell
Jones
Mr. Lord
Inspector Blow
Editor, Evening Comet
Gamekeeper
Herr Veit
Monsieur Joue: Staff of Nutbourne
Customer With Umbrella
Kapitan von Lutz
Naylor
Bert
Prison Governor (uncredited)
Capt. Perez
Schwartz, spy chieftain
Otto Lemnel
McFarlane
Monsieur Fayolle
Simms
Alec Laurie
William Read
Mr. Curtail
Dr. Willendorf
Dvorak
Chairman of Meeting
Gustave
French Customs Man
Saxon Rose
Brood
Superintendent
Mr. Mellows
Adm. Westerham
Capt. Reid
Captain of Swedish Packet
Alec Stevens
Suddaby
Captain of the 'Rob Roy'
District Superintendent
Merridew
Sir Frank Murchison
Officer
Monty Carr
Police Sergeant
Charles Lennox