Calificación
Reparto

Charlton Heston
Maj. Bernard R. 'Barney' Benson

Julie Adams
Dr. Kay Lambert

William Demarest
John

Tim Hovey
Cadet Thomas 'Tiger' Flaherty

Nana Bryant
Mother Redempta

Tim Considine
Cadet Lt. Gerald Hibler

Sal Mineo
Cadet Col. Sylvester Dusik

Milburn Stone
Maj. Gen. Wilton J. Ramsey

Mary Field
Sister Mary Theresa

Joey D. Vieira
Cadet Cpl. Scawalski (as Donald Keeler)

Gary Pagett
Cadet Lt. Molony

Don Haggerty
Harold Hibler

David Janssen
Young Lieutenant

Richard H. Cutting
Monsignor Collins

Sue George
Nancy (uncredited)

Steven Benson
Cadet