James V. Dunn
Neville Brand
Warden Reynolds
Emile Meyer
Guard Acton
James Anderson
Captain of the Guards Barrett
Carleton Young
Reporter
Harold J. Kennedy
William Schallert
Reporter Russell
Jonathan Hole
Frank
Robert Patten
Mickey
William Phipps
Al
Joel Fluellen
Guard Delmar
Roy Glenn
Mac
Joe Kerr
Commissioner Haskell
Frank Faylen
Manuel
John Tarangelo
Guard Ambrose
Robert Burton
Governor
Thomas Browne Henry
Crazy Mike Carne
Leo Gordon
The Colonel
Robert Osterloh
Guard Monroe
Paul Frees
Don Keefer
Gator
Alvy Moore
Schuyler
Dabbs Greer
Guard Snader
Whit Bissell
Director
Don Siegel
Director of Photography
Russell Harlan
Art Direction
Dave Milton
Story
Richard Collins
Screenplay
Producer
Walter Wanger
Original Music Composer
Herschel Burke Gilbert
Editor
Bruce B. Pierce