Cast Principale
Bruce Edwards
Steve Colt
Nessuna foto
Virginia Lee
Joyce Winters (as Virginia Lindley)
Carol Forman
Sombra, The Black Widow
Anthony Warde
Nick Ward
Ramsay Ames
Ruth Dayton
I. Stanford Jolley
Dr. Z.V. Jaffa
Nessuna foto
Dave Anderson
Porter-Spy
Theodore Gottlieb
Hitomu
Virginia Carroll
Dr. Ann Curry
Gene Roth
John M. Walker
Sam Flint
Prof. Henry Weston
LeRoy Mason
Dr. Godfrey
