Character Name : Maj. Bernard R. 'Barney' Benson

Original Name : Charlton Heston

Gender : Male

Character Name : Dr. Kay Lambert

Original Name : Julie Adams

Gender : Female

Character Name : John

Original Name : William Demarest

Gender : Male

Character Name : Cadet Thomas 'Tiger' Flaherty

Original Name : Tim Hovey

Gender : Male

Character Name : Mother Redempta

Original Name : Nana Bryant

Gender : Female

Character Name : Cadet Lt. Gerald Hibler

Original Name : Tim Considine

Gender : Male

Character Name : Cadet Col. Sylvester Dusik

Original Name : Sal Mineo

Gender : Male

Character Name : Maj. Gen. Wilton J. Ramsey

Original Name : Milburn Stone

Gender : Male

Character Name : Sister Mary Theresa

Original Name : Mary Field

Gender : Female

Character Name : Cadet Cpl. Scawalski (as Donald Keeler)

Original Name : Joey D. Vieira

Gender : Male

Character Name : Cadet Lt. Molony

Original Name : Gary Pagett

Gender : Male

Character Name : Harold Hibler

Original Name : Don Haggerty

Gender : Male

Character Name : Young Lieutenant

Original Name : David Janssen

Gender : Male

Character Name : Monsignor Collins

Original Name : Richard H. Cutting

Gender : Male

Character Name : Nancy (uncredited)

Original Name : Sue George

Gender : Female

Character Name : Cadet

Original Name : Steven Benson

Gender : Male

Character Name : Woman at Airport

Original Name : Madge Blake

Gender : Male

Character Name : Cadet Lt Morelli (uncredited)

Original Name : Alfred Caiazza

Gender : Male