John Wayne
Stephen Aloysius Williams
Donna Reed
Alice Singleton
Chuck Connors
Stan Schwegler
Charles Coburn
le Père Matthew William Burke
Sherry Jackson
Carol Williams
Marie Windsor
Anne Williams McCormick
Tom Helmore
Harold McCormick
Dabbs Greer
Father Peterson
Leif Erickson
Father Provincial aka Ed
Douglas Spencer
Father Procurator aka George
Lester Matthews
Cardinal William Patrick O'Shea
Frank Ferguson
Mike Edwards
James Flavin
Coach Buck Holman
Fritz Ford
Football Player
Merv Griffin
Football Broadcaster (voice)
Robert Keys
Santa Clara Team Manager Joe
Frank Marlowe
Drunk in Bar with Dog
Larry Merrill
Jeffrey Marlowe
Jack Mower
Domestic Court Staffer
William H. O'Brien
Bartender Joe
Jack Pepper
Irish Tenor / Pianist in Saloon
Howard Petrie
Marvin Adams
Angi O. Poulos
Saloon Waiter
Bill Radovich
Moose McCall
Olan Soule
Cardinal's Secretary
Arthur Tovey
Football Spectator
Renata Vanni
Maria's Italian Mother
Gayne Whitman
Lawyer Grummet
James Dean
Football Spectator (uncredited)