Rollo Lamar
Broderick Crawford
Geraldo 'Jerry' Barker aka Iceman
Ralph Meeker
Ranger McCormick
Robert Bray
William Boyett
Nelson Leigh
Gregg Martell
Bill McLean
Jan Merlin
Joe Ploski
Police Warden Machek
Stafford Repp
Harry Wilson
Special FBI Agent James Madden
Reed Hadley
William 'Machine Gun' Mason
William Talman
Leonard M. 'Alamo' Smith (as Lon Chaney)
Lon Chaney Jr.
Benny Kelly
Charles Bronson
Emily Euridice Evans (as Randy Farr)
Felicia Farr
Chief Ranger Will Erickson
Roy Roberts
Robertson Lambert (as Willis B. Bouchey)
Willis Bouchey
Danny Lambert (as Peter Votrian)
Peter J. Votrian
Director
Howard W. Koch
Screenplay
John C. Higgins
Production Design
Charles D. Hall
Story
George W. George
George F. Slavin
Producer
Aubrey Schenck
Original Music Composer
Paul Dunlap
Director of Photography
Gordon Avil
Editor
John F. Schreyer