as

Professor Bowen

as

Professor Omega

as

Professor Darcy

as

Dr. Rowitz

as

Suave Man

as

Ivan Borolsky, aka Jim

as

Dr. Louis Dumont

as

Dr. Fried (credits) / Dr. Beaudine (in film)

as

Capt. Spicer

as

Major Anthony Kinsella

as

Harry

as

Lieutenant Destin

as

George Harris

as

Salvatti

as

Count Orloff

as

Captain Herault

as

Maurice Séquineau

as

Ledoux

as

Gigberto

as

Prince Yussuf

as

Poulet

as

Kenneth Bellwood

as

Henri La Flamme

as

Israelite Slave (uncredited)

as

Ramlika

as

Paul Savelli

as

Svengali

as

'Con' Arnold (as Arthur Carewe)

as

Col. Fentress

as

Duke d'Alba

as

Bolton (as Arthur Carewe)

as

Stinson

as

Christiansen

as

Grant Lewis

as

Don Jose Alvarado (as Arthur Carewe)

as

Prince Hagane (as Arthur Carewe)

as

Count Alix Voronassof

as

Middy Knox

as

Claude Estabrook