Discover
Richard Bailey
Lance Reardon
Linda Stirling
Claire Forrest
Roy Barcroft
Capt. Mephisto
Kenne Duncan
Sidney Brand
Forrest Taylor
Prof. William Forrest
Forbes Murray
Prof. Harry Hargraves
Jack Ingram
Edward Armstrong
Harry Strang
Frederick "Fred" Braley
Ed Cassidy
Paul Melton
Frank Alten
John Raymond
Lane Chandler
Police Insp. Reed
Russ Vincent
Ruga
Dale Van Sickel
Barker / Ritter / Lewis / Frazier / Sardon
Tom Steele
Lyons / Bailey
Duke Green
Spencer Harvey
Camera
Bud Thackery
Director of Photography
Crew
Duke Green
Stunts
Fred Graham
Stunts
Howard Lydecker
Special Effects
Tom Steele
Stunts
Theodore Lydecker
Special Effects
Duke Taylor
Stunts
Eddie Parker
Stunts
Dale Van Sickel
Stunts
Babe DeFreest
Stunts
Editing
Harold Minter
Editor
Cliff Bell Sr.
Editor
Production
Ronald Davidson
Producer
R.G. Springsteen
Unit Manager
Ronald Davidson
Associate Producer
Writing
Alan James
Screenplay
Basil Dickey
Screenplay
Grant Nelson
Screenplay
Joseph F. Poland
Screenplay
Jesse Duffy
Screenplay
Albert DeMond
Screenplay
Camera
Bud Thackery
Director of Photography
Crew
Duke Green
Stunts
Fred Graham
Stunts
Howard Lydecker
Special Effects
Tom Steele
Stunts
Theodore Lydecker
Special Effects
Duke Taylor
Stunts
Eddie Parker
Stunts
Dale Van Sickel
Stunts
Babe DeFreest
Stunts
Editing
Harold Minter
Editor
Cliff Bell Sr.
Editor
Production
Ronald Davidson
Producer
R.G. Springsteen
Unit Manager
Ronald Davidson
Associate Producer
Writing
Alan James
Screenplay
Basil Dickey
Screenplay
Grant Nelson
Screenplay
Joseph F. Poland
Screenplay
Jesse Duffy
Screenplay
Albert DeMond
Screenplay