Richard Anderson
Dr. Paul Mallon
Acting
Elaine Edwards
Tina Enright
Acting
Adele Mara
Maria Fiorillo
Acting
Luis van Rooten
Dr. Carlo Fiorillo
Acting
Jan Arvan
Police Insp. Renaldi
Acting
Felix Locher
Dr. Emanuel
Acting
Gar Moore
Dr. Enricco Ricci
Acting
Bob Bryant
Quintillus Aurelius
Acting
Morris Ankrum
Narrator (unconfirmed)
Acting
George Sawaya
Tony
Acting
Rudy Germane
Police Officer (uncredited)
Acting
Jack Kenney
Police Officer (uncredited)
Acting
George Sawaya
Tony (uncredited)
Acting
Stephen Soldi
Workman (uncredited)
Acting