Professor (uncredited)
Simkins
Doc Hunter
Joseph Manners
Minor Role (uncredited)
Superintendent Keene
Roemer
Townsman
Pat Doyle
Roger Morton
Crane
Caleb Delthern
Chandler Elliott
Coxon
Doctor
Mr. Abrams
Sheriff Sam Corwin
Dr. Munro
Jerome T. Shelby
Prof. Trowbridge
Defense attorney
John J. Martin
Governor
Grover Cromwell
Colonel Charles Ormsby
Banker (uncredited)
Doctor Consoling Nasa (Uncredited)
John Tracy
Dr. McDonald
Robert Henley
Dr. Schifflen
John Nichols
Dr. Niergardt
Passport Official at Airport
General
Hotel Manager
Serafin, Arturo's Butler
Madeleine's Father
Dr. Mark Wyndram
Judge Advocate (as John M. St. Polis)
Dr. Rinewulf
Pedro
The Imam Mahmud
Don Diego
Judge
Von Kemper
John Rountree
Andrew Stratton
Dr. John M. Besant
Pa Kelly
Defense Attorney
Mouvet
Surgeon (uncredited)
Erastus Mason
Comte de Maigny
Prof. Leopold Eberhardt (as John Sainpolis)
Comte Philip de Chagny
Mark Kelsey (as John Sainpolis)
Inspector
Dexter
Ridgeway (modern sequence)
André du Vallois
Rossland (as John Sainpolis)
Monahan
Colonel de Gontran (Prologue)
The King
Milo Bleech (as John Sainpolis)
Dr. Copin
John Crawshay
Himself - Celebrity Actor in Commissary
Nate Snow
Skinner (as John Sainpolis)
Etienne Laurier
Jean Paurel
Black Jack Burg
Sam Tupper
Harvey Brooks
Dejoie
Duvernet
