John Resko
Ben Gazzara
Principal Keeper
Stuart Whitman
Guard
Adam Williams
Teach
Jack Albertson
John Kellogg
Commissioner
Robert H. Harris
Connie Resko
Carmen Phillips
Nick
Timothy Carey
Gunther
Myron Healey
Stanley
Lee Krieger
Vic the Barber
Josip Elic
Storekeeper
Arthur Malet
Iggy
Ray Walston
Robert Christopher
Greer
Reggie Nalder
Kreg Martin
Cathy (as an adult)
Susan Silo
Lefty
Tom Gilson
Duke
Roland La Starza
Warren J. Kemmerling
Inmate
Andy Albin
John Close
Cell Block Guard
John Dennis
Carl Carmer
Vincent Price
Billy Varga
Gallery Man
Burt Lange
Painter (uncredited)
Vincent Barbi
Sculptor (uncredited)
Peter Besbas
Cell Block Guard (uncredited)
John Dierkes
Bobby Gilbert
Sid Kane
Lenny Kent
Convict (uncredited)
Johnny Kern
Ernesto Molinari
Tiptoes
Rod Steiger
Norman Nazarr
Norman Stevans
Guard (uncredited)
Robert Swimmer
Robert White
Warden
Broderick Crawford
Resko's Sister
Dodie Stevens
Resko's Father
Jack Kruschen
Wino
Sammy Davis Jr.
Resko's Mother
Naomi Stevens
Original Music Composer
Leonard Rosenman
Director
Millard Kaufman
Screenplay
Author
Editor
George White
Makeup Artist
William Turner
Production Supervisor
Edward Morey Jr.
Assistant Director
Clark L. Paylow
Mickey Lewis
Property Master
Ted Mossman
Construction Coordinator
James West
Sound
Ralph Butler
Sound Editor
Archie Dattelbaum
Special Effects
Milton Olsen
Wardrobe Master
Roger J. Weinberg
Location Manager
Jim Henderling
Music Editor
Eve Newman
Continuity
Robert Gary
Technical Advisor
Producer's Assistant
Doane Harrison
Producer
A. Ronald Lubin
Director of Photography
Joseph F. Biroc
Art Direction
Howard Richmond
Set Decoration
Joseph Kish