as Mr. Rogan

as Dr. Marko

as Lord Warrick

as Mr. Brigstock

as British Secretary

as Frederick Malone

as Chief Inspector W.R. Allison

as Over the Shoulder Reader

as Sir Robert Bentley

as Leuwen Grayle

as Charles Seagrave

as Giles Conover

as Judge Brisson

as Major Loring (uncredited)

as Businessman (uncredited)

as Sir Frederick Fleet

as Weatherby (uncredited)

as Pleyel

as Colonel Fitzhume (uncredited)

as Col. Herman Fournier

as Paul Panois

as Kilpatrick

as James V. Thorne

as Floyd Kirsten

as Dr. Leonard V. Meecham

as German Agent on Radio (voice) (uncredited)

as Major

as Portmaster

as Dr. Kurt Immelman

as Major Cunningham

as Dr. Wilton

as Professor Langer

as Dr. Lockberg

as Doctor (uncredited)

as Lord Keith

as Tom Armitage

as Roger Smythe

as Lieut. Strope

as Dr. Rankin

as Deacon Arnold Foster

as Homer

as Sir Malcolm Drake (uncredited)

as Mr. Charles Pryor

as Attorney General (uncredited)

as King Henry VI

as Sir John Gresham

as Aramis

as Horace Granville

as Lockwood

as Lord Wickham

as Cardinal Richelieu

as Benjamin Disraeli

as Fred Thomas

as Ebenezer Balfour

as The Sparkler

as James Stratton

as Corey

as Jukes

as King Louis XIII

as Bert

as Garry Ames

as Feize

as Harley Travers

as Captain Auguste Lutte

as Wriothesley

as Capt. Ronald Dancy, DSO

as Harry Tresham

as Ambatriadi

as Claude Holford

as Gordon Moore

as Gordon Druce

as Raymond Carteret

as Guy Merrow

as Adolf Sperber

as Sir Hugo Boycott

as Capt. Gardner

as Mr. Borwick

as Armand de Marny

as Hon Gerald Pillick

as Rollo Stevens

as Sir Neville Moreton

as Levett

as Godfrey Norton