John Wayne as Maj. Daniel Xavier Kirby

Robert Ryan as Capt. Carl 'Griff' Griffin

Don Taylor as Lt. Vern 'Cowboy' Blithe

Janis Carter as Joan Kirby

Jay C. Flippen as MSgt. Clancy, Line Chief

William Harrigan as Dr. Lt.Cdr. Joe Curran

James Bell as Colonel

Barry Kelley as Brigadier General

Maurice Jara as Shorty Vegay

Adam Williams as Lt. Bert Malotke

James Dobson as Lt. Pudge McCabe

Carleton Young as Col. Riley

Michael St. Angel as Capt. Harold Jorgensen, Ops. Officer

Brett King as 1st Lt. Ernie Stark

Gordon Gebert as Tommy Kirby

Hal Bokar as

Barry Brooks as

Charles Brunner as

Richard Condon as

James Craven as

Victor Cutler as

Gail Davis as Virginia Blithe (uncredited)

Sam Edwards as

Fred Graham as MP Sergeant (uncredited)

Chuck Hamilton as

Douglas Henderson as Lt. Foster (uncredited)

Milton Kibbee as Indian Affairs Clerk (uncredited)

Mona Knox as

Keith Larsen as

Harry Lauter as

Paul McGuire as

Eda Reiss Merin as

John Mitchum as

Patricia Prest as

Noel Reyburn as

Hugh Sanders as

Lynn Stalmaster as

Milburn Stone as Fleet CIC Radio Operator (uncredited)

Harlan Warde as

Dick Wessel as Mess Sergeant (uncredited)

Mack Williams as

Peter Ortiz as

Chuck Courtney as 3rd Pilot Replacement (uncredited)