Burt Lancaster
Joe Collins
Hume Cronyn
Capt. Munsey
Charles Bickford
Gallagher
Yvonne De Carlo
Gina Ferrara
Ann Blyth
Ruth
Ella Raines
Cora Lister
Anita Colby
Flossie
Sam Levene
Louie Miller #7033
Jeff Corey
'Freshman' Stack
John Hoyt
Spencer
Jack Overman
Kid Coy
Roman Bohnen
Warden A.J. Barnes
Sir Lancelot
Calypso
Vince Barnett
Muggsy
Jay C. Flippen
Hodges (guard)
Richard Gaines
McCollum
Frank Puglia
Ferrara
James Bell
Crenshaw
Howard Duff
Robert 'Soldier' Becker
Art Smith
Dr. Walters
Whit Bissell
Tom Lister
James O'Rear
Wilson
Paul Bryar
Harry (uncredited)
Gino Corrado
Italian Father Visiting Prison (uncredited)
Al Ferguson
Guard (uncredited)
Jack Gordon
Convict (uncredited)
John Harmon
Roberts (uncredited)
Herbert Heywood
Chef (uncredited)
Tom Steele
Tom - Tower Guard (uncredited)
Ray Teal
Jackson - Guard (uncredited)
Dale Van Sickel
Guard in Machine Shop (uncredited)