Professor (uncredited)
Simkins
Doc Hunter
Joseph Manners
Minor Role (uncredited)
Superintendent Keene
Carl Roemer
Townsman
Pat Doyle
Roger Morton
Crane
Caleb Delthern
Chandler Elliott
Coxon
Doctor
Mr. Abrams
Sheriff Sam Corwin
Dr. Munro
Opera Conductor (uncredited)
Jerome T. Shelby
Prof. Trowbridge
Attorney General Davis (uncredited)
Defense attorney
John J. Martin
French Police Investigator (uncredited)
Governor
Grover Cromwell
Colonel Charles Ormsby
Banker (uncredited)
Doctor Consoling Nasa (Uncredited)
John Tracy
Glidden Associate (uncredited)
Dr. McDonald
Robert Henley
Dr. Schifflen
John Nichols
Dr. Niergardt
U.S. Ambassador
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
The Imam Mahmud
Don Diego
Judge
Philip Vantine
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)
Count Filippo Sturani
Mark Kelsey (as John Sainpolis)
Inspector
Comte Philip de Chagny
Ridgeway (modern sequence)
André du Vallois
Dr. Philip Logan
Rossland (as John Sainpolis)
Monahan
Colonel de Gontran (Prologue)
The King
Hiram Burbeck
Milo Bleech (as John Sainpolis)
Defense Attorney
Dr. Copin
John Crawshay
Self - Celebrity Actor in Commissary
Andrew Lane
Nate Snow
Skinner (as John Sainpolis)
Etienne Laurier
Jean Paurel
Jeffrey Bretton
Black Jack Burg
Sam Tupper
Judge Hoyt
David Moulton
Harvey Brooks
Clavering
Edwin Bryce
Dejoie
Duvernet
Dr. Hamilton Welsh
Albert Sassoon
Pres. Alvarez
