Charles Middleton
39013
Charles Quigley
Gene Townley
Bruce Bennett
Tiny Dawson
David Sharpe
Bert Knowles
Carole Landis
Blanche Granville
Miles Mander
Horace Granville
C. Montague Shaw
Dr. Malcolm
Ben Taggart
Dixon
William Pagan
Police Chief Landon
Corbet Morris
Klein
Raymond Bailey
Stanley
Fred 'Snowflake' Toones
Snowflake
George Chesebro
Sheffield
Ray Miller
Jeff
Robert Winkler
Sammy Townley
Earl Askam
Lutens
Roy Barcroft
Mine Superintendent
Reginald Barlow
Doctor in Hospital
Roy Brent
Bill
Buel Bryant
Clinic Thug
Earle D. Bunn
Derrick Thug
Forrest Burns
Mac--Gas Plant Heavy
Yakima Canutt
G-Man
Jack Chapin
Joe--Gas Plant Heavy
Eddie Cherkose
Burton
Edmund Cobb
Oil Field Foreman
George DeNormand
G-Man
Forrest Dillon
Kid
Dee Dodd
Kid
Curley Dresden
Powerhouse
James Fawcett
Man
Eddie Foster
Zeke
Art Fowler
Sloan
Jerry Frank
Dognapper
Lee Frederick
Bob
Bud Geary
Mine Thug at Phone
Oscar 'Dutch' Hendrian
Tank Heavy
Earle Hodgins
Hinkle--Barker
Reed Howes
Derrick Thug
Jerry Jerome
Marco
Jack Kenney
Steve
Raymond Largay
Police Commissioner
Bert LeBaron
Blake
Ted Mapes
Man
Trudy Marson
Nurse Benson
Max Marx
Tank Heavy
Millard McGowan
Man
Joe McGuinn
Ed
Walter Merrill
Pete #2
John Merton
Davis--Gas Plant Heavy
Howard M. Mitchell
Police Dispatcher
Monte Montague
Tom
Norman Nesbitt
Newscaster
Bill Nestell
Pipeline Thug
Broderick O'Farrell
D. A. Graves
Eddie Parker
Pete--Derrick Heavy
George Plues
Ted--Gas Plant Heavy
Stanley Price
Prof. Selden
Loren Riebe
Derrick Thug
Robert Robinson
Al--Chemist
Fred Schaefer
Oil Thug
Dick Scott
Powerhouse Thug
Cy Slocum
Power Thug
Harry Strang
Peck
Bernard Suss
Dr. Black
Al Taylor
Al
Duke Taylor
G-Man
Ken Terrell
Gas Plant Thug
Bob Thompson
Powerhouse Thug
Charles Thomas
Sam
George Turner
Oil Thug
Sailor Vincent
Miner
Frank Wayne
Dan
Dave Wengren
Miner
Wally West
Thug at Selden's Lab
Lloyd Whitlock
Doctor
Robert J. Wilke
G-Man
Bill Wilkus
Office Thug / Gas Plant Thug
Bud Wolfe
Dognapper-Driver
Joe Yrigoyen
Power Thug
Michael Jeffers
G-Man
Tuffy
Tuffie (as Tuffie the Dog)
Harry Anderson
Ward (uncredited)
John English
Director
William Witney
Director
Barry Shipman
Screenplay
Franklin Adreon
Screenplay
Rex Taylor
Screenplay
Ronald Davidson
Screenplay
Sol Shor
Screenplay
William P. Thompson
Editor
Edward Todd
Editor
Bob Mark
Makeup Artist
Robert M. Beche
Producer
Howard Lydecker
Special Effects
Theodore Lydecker
Special Effects
Earle D. Bunn
Stunts
George DeNormand
Stunts
James Fawcett
Stunts
Ted Mapes
Stunts
Loren Riebe
Stunts
Duke Taylor
Stunts
Helen Thurston
Stunts
William Nobles
Director of Photography
William Lava
Original Music Composer
Ken Terrell
Stunts