Commissioner's Laywer
2nd Gambler
Surgeon
Dr. Frankenstein
Dr. Durrant
Mouth Organist (1 episode)
Coroner
Duquai
Dr. Reinhart
Sir Godwin Phipps-Cheston (1 episode)
Professor MacIntyre (1 episode)
Gregorius
Banker Irwing
Prof. Gorak (1 episode)
Akela (voice)
Ayleborn (1 episode)
Emile
Dr. Ellias Swan (1 episode)
Conrad Jaeger (1 episode)
Sir Egbert (1 episode)
Senator Wigfall (1 episode)
Sir Trevor Gielgud Burton-Guiness (1 episode)
Mr. Orlandos
Prof. Carlos Muntz (1 episode)
Dr. Durwood Tobey (1 episode)
Kriss Milo ('The Mask of Medusa') (1 episode)
Professor Brent (1 episode)
Harwood Gones (1 episode)
Winston Ainslee (1 episode)
Travers (1 episode)
Manuel
Yusuf
Dipso Dale Rutherford
Professsor Meyerdal (1 episode)
Nathan (1 episode)
Professor Lute Bone (1 episode)
Eddie (1 episode)
Dr. Sawyer
Dr. Albert Sawyer (1 episode)
Mustafa el Melik
Col. Barton (1 episode)
Don Daniel
Herbert Bielensen
Nitra Puta
Marshovian Ambassador
Abel Harmer
Sykes
Pappa Cerrano
Pierre
Mayor Tuvache
Frederick Fairlie
Mr. Twyning
Charles Murdock
Max Leiberman
Rozner
Bertram Gribble
Phya Phrom
Joseph Baronova
Will Scarlet
Lal Bara
Roscoe Bean
Jimmy Gordon
Welles
Kaspar Andropolous
Webb Fallon
Martin S. Dwyer
Chris Martin
Peter Althius (uncredited)
Salesman
Mortimer Cope
Alfonse Lamont
Lunin
Reporter (uncredited)
Mr. Pappas
Mason
Baker (uncredited)
Roland X. Smith (uncredited)
Grinko (uncredited)
Hostage (scenes deleted)
Gregory Vanesou
Dr. Ferris
Jack Rawlings
Carl aka Charles
Professor Radowsky
English Spy
Poppy's Escort
Starving Beggar
Starving Begger (uncredited)
Count Stephen Duni
Hood with Foreign Accent
Flower Seller
