John Davidson

Lone Wolf

Hadley - S.A.C. Observer (uncredited)

Man (uncredited)

Extra (uncredited)

Prince Samu

Man (uncredited)

Best Man at Wedding (uncredited)

Faculty Board Member (uncredited)

Artist

Board Member

Maitre D' (uncredited)

Headwaiter (uncredited)

John, First Waiter (uncredited)

Reporter (uncredited)

Customer (uncredited)

Mr. Edwards

Emperor of Mars

Lawyer

Princeton Team Doctor (uncredited)

Harley

Carl Karzoff / Kurt Karzoff

Gruber

Sheik

Lucifer

(uncredited)

Prof. Percival Garland Raines

Hospital Superintendent (uncredited)

Shelton

Minor Role (uncredited)

Weird Voice (voice)

Prince Suleid

Prof. William Delmore, the Hypnotist (uncredited)

Hakim

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

Blue Nose Hour Radio Announcer (voice)

Ackroyd

R. Xavier

Mr. Hatfield

Dr. Bashan

Kasim-Native

Kellner

Hotel Manager (uncredited)

Robbery Accomplice (uncredited)

Gourney-Martin's Butler

Vance

Mr. Smith

Edward 'Ned' Wales

Blackie Culver

Pete Ward

Don Holland

Stone

Hassim

Ernest Riever

Richelieu

Florian

Sheik Ben Ali Hammed

Otis Yeardley

The Count Demitry Scardoff

Prince Talaat-Ni

Theodore Brandeis

Salig Singh

Mischa Grossman

Sonino

Jim Garvin

Pierre Dubois

Walter Tressler

José de Co0rdova

Narciso

John Maddox Jr.

Paul Berwick

Horace Chapron

Cabaret Dancer

Undetermined Role

Howard Hayes

Wood Harding

Navarete

Paris

Duke de Reves

Capt. Burkett

Stephen Might Jr.

Rodman Cadbury

Norman Van Aulsten

Paul Duncan

M. Cheivasse

John Folsom

Lieutenant Salza

Pierre Vignol - Artist