Eduardo Ciannelli
Doctor Satan
Acting
Robert Wilcox
Bob Wayne / Copperhead
Acting
William Newell
Speed Martin
Acting
C. Montague Shaw
Prof. Thomas Scott
Acting
Ella Neal
Lois Scott
Acting
Dorothy Herbert
Alice Brent
Acting
Charles Trowbridge
Gov. Bronson
Acting
Jack Mulhall
Police Chief Rand
Acting
Edwin Stanley
Col. Bevans
Acting
Walter McGrail
Stoner
Acting
Joe McGuinn
Gort
Acting
Bud Geary
Hallett
Acting
Paul Marion
Corbay
Acting
Archie Twitchell
Ross
Acting
Lynton Brent
Scarlett
Acting
Ken Terrell
Corwin
Acting
Al Taylor
Joe
Acting
George Allen
Henchman-Driver Spike
Acting
John Bagni
Gray, Pick-up Thug
Acting
Frank Brownlee
Panamint Pete
Acting
James Bush
Co-Pilot
Acting
Yakima Canutt
Sailor at Winch
Acting
Virginia Carroll
Nurse
Acting
Ed Cassidy
Barton
Acting
Davison Clark
Police Lieutenant
Acting
Tris Coffin
Wells - Governor's Secretary
Acting
Frank Conklin
Station Master Burns
Acting
Fred Criswell
Officer
Acting
Eddie Dew
Gas Station Attendant
Acting
Frank Ellis
Plant Henchman
Acting
James Fawcett
Al
Acting
Sam Garrett
Roper
Acting
Duke Green
Duke - Mine Thug
Acting
Alan Gregg
Red - Mine Thug
Acting
Kenneth Harlan
Capt. Lathrop
Acting
Charles Hutchison
Proprietor
Directing
Jerry Jerome
House Heavy
Acting
Patrick Kelly
Plant Henchman
Acting
Marten Lamont
Steve - Pilot
Acting
Bert LeBaron
Henchman Fallon
Acting
Jack O'Shea
House Heavy
Acting
Eddie Parker
Chuck - Lead Truck Thug
Acting
Hal Price
P&G Warehouse Mgr.
Acting
Ernest Sarracino
Henchman-Guard
Acting
Cy Schindell
Jake - Biplane Pilot
Acting
William Stahl
Detective Brock
Acting
Ted Stanhope
Warehouse Watchman
Acting
Tom Steele
Truck Henchman
Acting
Harry Strang
Police Officer Davis
Acting
Duke Taylor
Watkins - Fire Escape Thug
Crew
Robert Wayne
Detective Perry
Acting
Wally West
Palmer - Thug
Acting
Lloyd Whitlock
Prof. Williams
Acting
Bill Wilkus
Truck Henchman
Acting
Bud Wolfe
Sailor at Cable
Acting