Escape from San Quentin: Reparto
Johnny Desmond
Mike Gilbert
Richard Devon
Roy Gruber
Roy Engel
Hap
Ken Christy
Curly Gruber
William Bryant
Richie
Merry Anders
Robbie
Larry J. Blake
Hap's Lead Henchman
Paul Bryar
Mr. Lang
Don Devlin
Undetermined Role [IMDb name: "Piggy"]
Dean Fredericks
Hap's Henchman Jerry
Victor Millan
Lawyer Mendez
Peggy Maley
Georgia Gilbert
Dennis Moore
Police Sgt. at Headquarters
Tristram Coffin
Detective Lieutenant at Headquarters