Bruce Edwards

Steve Colt

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

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

Forrest Taylor

Bradley

Ernie Adams

Blinky

Keith Richards

Michael Burns

George Chesebro

J. Carter

Frank Lackteen

A. Kabob

Carey Loftin

Spike

Ted Mapes

Slade

Jack O'Shea

Finnegan

Gil Perkins

Burke

John Phillips

District Attorney Mark

Stanley Price

Filmore Hagen

Larry Steers

Dr. Harcourt

Ken Terrell

Mendoza