Big House, U.S.A

Broderick Crawford

As Rollo Lamar

Ralph Meeker

As Geraldo 'Jerry' Barker aka Iceman

Reed Hadley

As Special FBI Agent James Madden

William Talman

As William 'Machine Gun' Mason

Lon Chaney Jr.

As Leonard M. 'Alamo' Smith

Charles Bronson

As Benny Kelly

Felicia Farr

As Emily Euridice Evans

Roy Roberts

As Chief Ranger Will Erickson

Willis Bouchey

As Robertson Lambert

Peter J. Votrian

As Danny Lambert

Robert Bray

As Ranger McCormick

William Boyett

As Ranger at Park Exit (uncredited)

Nelson Leigh

As Madden's FBI Supervisor (uncredited)

Gregg Martell

As Accomplice on Fishing Boat (uncredited)

Bill McLean

As Dipsy (uncredited)

Jan Merlin

As Tommy (uncredited)

Joe Ploski

As Convict (uncredited)

Stafford Repp

As Police Warden Machek (uncredited)

Harry Wilson

As Inmate Who Starts Fight (uncredited)