Arthur Conan Doyle (1 episode)
Head Constable
Burford
Major Harper
Mr. Pitcher
Mr. Smith
Capt. Munsey
Sir William Glasdale
Mr. Burnside
Tiny Wilson
Minister of War Grubitch
Williams 'Bill', Matilda's Butler
Roger Elwood
Steven Loring
Tim Hager
Cole Gregory
Sir Edward
Inspector Pierce
Commissioner
Inspector Lestrade
Jonathan Selby
Sultan Kamar Al-Kir / Prince Hadji
Inspector Lestrade
Mr. Greenford
Alec Chisholm (uncredited)
Inspector Lestrade
Father Le Clerc
Insp. Lestrade
Inspector Lestrade
Gestapo Col. von Grunow
Col. Taeger
Inspector Owen
Inspector Lestrade
Colonel Woodhue
Parsons
Lord Tarrant
Duffield, Ministry of Information
Intelligence Officer
C.I. Tanner
Nikander
Mara the White Chief
Gambling Winner
M. Daumery
Tom Goodschild
Soldier / Toby Belch
MNT
Montagu Neilson
Miles-Na-Copaleen
Rakham, chief henchman
Capradossi
Lord de Beaudricourt (Phase II)
Sir Rudolph Bartlett
Captain Sabry
Anthony Carlisle
Cyrus Watt
Stranger
The Chaplain, called "Padre"
Jimmy Donovan
Hotelier