Escape from San Quentin

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

Saul A. Goodkind

Editor

Sam Katzman

Producer

Sidney Clifford

Set Decoration

Fred F. Sears

Director

Bernard Gordon

Writer

Benjamin H. Kline

Director of Photography

Leonard Katzman

Assistant Director

Laurindo Almeida

Original Music Composer

J.S. Westmoreland

Sound

Paul Palmentola

Art Direction

Seldon White

Gaffer

Hank Coffin

Technical Advisor