Man (uncredited)
Extra (uncredited)
Prince Samu (archive footage)
Man (uncredited)
Faculty Board Member (uncredited)
Board Member
Headwaiter (uncredited)
John, First Waiter (uncredited)
Mr. Edwards
Emperor of Mars
Princeton Team Doctor (uncredited)
Harley
Carl Karzoff / Kurt Karzoff
Gruber
Lucifer
(uncredited)
Prof. Percival Garland Raines
Hospital Superintendent (uncredited)
Shelton
Minor Role (uncredited)
Weird Voice (voice)
Prince Suleid
Prof. William Delmore, the Hypnotist (uncredited)
Gumba, Bird Seller
Aide to Ramin Khan
Lin Wing
Mr. Wingate (uncredited)
Doctor Coleman
Cafe Manager in Cairo
Phoebus (uncredited)
Chemist Daoud Atrash
Prince Samu
Professor Brand
Yandoo
Siegfried Sonoff
Gookol Moah
Ackroyd
R. Xavier
Mr. Hatfield
Dr. Bashan
Kasim-Native
Kellner
Hotel Manager (uncredited)
Gourney-Martin's Butler
Mr. Smith
Edward 'Ned' Wales
Don Holland
Stone
Hassim
Ernest Riever
Richelieu
Florian
Sheik Ben Ali Hammed
The Count Demitry Scardoff
Prince Talaat-Ni
Theodore Brandeis
Salig Singh
Mischa Grossman
Sonino
Walter Tressler
José de Co0rdova
Horace Chapron
Undetermined Role
Paris
Norman Van Aulsten
Paul Duncan
Lieutenant Salza
Pierre Vignol - Artist
