Dr. Charles Gaudet
Boris Karloff
Madame Lucien
Nedda Harrigan
Andre
John Harmon
Georges
Richard Bond
Leon
Earl Gunn
Soupy
Sidney Bracey
Dogface
George Lloyd
Governor Beaufort
Charles Richman
Gustav LeBrun
Stuart Holmes
Advocate General
Leonard Mudie
Debriac
Egon Brecher
President of Assize Court
Frank Reicher
Col. Armand Lucien
James Stephenson
Guard
James Blaine
Pilot of Escape Boat
Dick Botiller
Captain of the Guards
Al Bridge
Court Clerk
Nat Carr
Gendarme on Train
Glen Cavender
Captain of Gendarmes
Davison Clark
Jules
Neal Clisby
Guard Accepting Bribe
Harry Cording
Man Escaping Gendarmes with Debriac
Gino Corrado
Priest
Earl Dwire
Pierre
Adia Kuznetzoff
Supply Clerk
Eddie Foster
Galan Galt
Guard Escorting Gaudet After Operation
Sol Gorss
Frank Hagney
Captain of Second Convict Ship
John Hamilton
François - Sergeant of the Guards
Ben Hendricks Jr.
Stanley King
Gaudet's Housekeeper
Vera Lewis
Governor's Servant
Billy McClain
Guard Handcuffing Pierre
Henry Otho
Collette
Rolla Gourvitch
Jury Foreman
Paul Panzer
Capt. Edvard Fearreau of the First Convict Ship
Alonzo Price
Guard Drugged by Gaudet
Dick Rich
Uniformed Gendarme
Cliff Saum
Boatman Taking Madame Lucien to Mainland
Francis Sayles
Daniel - Madame Lucien's Servant
Earl Smith
Wagon Driver
Walter Soderling
Gate Guard
Elliott Sullivan
Don Turner
Douglas Williams
Bobo
Will Stanton
Dr. Duval
Edward Keane
Demonpre
Robert Warwick
Marcal
Pedro de Cordoba
Emil
Tom Wilson
Director
William Clemens
Screenplay
Kenneth Gamet
Don Ryan
Story
Anthony Coldeway
Raymond L. Schrock
Associate Producer
Bryan Foy
Original Music Composer
Howard Jackson
Director of Photography
George Barnes
Editor
Frank Magee
Art Direction
Max Parker
Makeup Artist
Ray Romero
Assistant Director
Arthur Lueker
Sound
Robert B. Lee
Stunts