Broderick Crawford

Rollo Lamar

Ralph Meeker

Geraldo 'Jerry' Barker aka Iceman

Reed Hadley

Special FBI Agent James Madden

William Talman

William 'Machine Gun' Mason

Lon Chaney Jr.

Leonard M. 'Alamo' Smith (as Lon Chaney)

Charles Bronson

Benny Kelly

Felicia Farr

Emily Euridice Evans (as Randy Farr)

Roy Roberts

Chief Ranger Will Erickson

Willis Bouchey

Robertson Lambert (as Willis B. Bouchey)

Peter J. Votrian

Danny Lambert (as Peter Votrian)

Robert Bray

Ranger McCormick

William Boyett

Nelson Leigh

Gregg Martell

Bill McLean

Jan Merlin

Joe Ploski

Stafford Repp

Police Warden Machek

Harry Wilson