Neville Brand as James V. Dunn

Emile Meyer as Warden Reynolds

Frank Faylen as Commissioner Haskell

Leo Gordon as Crazy Mike Carne

Robert Osterloh as The Colonel

Paul Frees as Guard Monroe

Don Keefer as Reporter

Alvy Moore as Gator

Dabbs Greer as Schuyler

Whit Bissell as Guard Snader

James Anderson as Guard Acton

Carleton Young as Captain of the Guards Barrett

Harold J. Kennedy as Reporter

William Schallert as Reporter

Jonathan Hole as Reporter Russell

Robert Patten as Frank

William Phipps as Mickey

Joel Fluellen as Al

Roy Glenn as Guard Delmar

Joe Kerr as Mac

John Tarangelo as Manuel

Robert Burton as Guard Ambrose

Thomas Browne Henry as Governor