Prisoners battle each other -- and the police -- when they escape the Colorado State Penitentiary.
Scott Brady | Jim Sherbondy |
Jeff Corey | Carl Schwartzmiller |
Whit Bissell | Richard Heilman |
Stanley Clements | Billy New |
Charles Russell | Tolley |
DeForest Kelley | Smalley |
Ralph Byrd | Officer Joe Gray |
Roy Best | Himself (as Warden Roy Best) |