Rory Calhoun
— Adam
Peggie Castle
— Katherine
Noah Beery Jr.
— Tonio (as Noah Beery)
Warner Anderson
— Major Ives
Peter Graves
— Sawyer
Lee Van Cleef
— Fire Knife
Rita Moreno
— Honey Bear
Dan Riss
— Sgt. Bandini
Walter Reed
— Keats
Patrick Sexton
— Lt. Bascomb (as Patrick Joseph Sexton)
Robert Bray
— Lieutenant Banion
Adam Williams
— Cpl. Maddock
James Best
— Private Bliss
Ned Glass
— Willy