Gregory Peck

Capt. Josiah "Joe" Newman, MD

Tony Curtis

Cpl. Jackson "Jake" Leibowitz

Angie Dickinson

Lt. Francie Corum

Eddie Albert

Col. Norval Algate Bliss

James Gregory

Col. Edgar Pyser

Bethel Leslie

Mrs. Helene Winston

Robert Duvall

Capt. Paul Cabot Winston

Jane Withers

Lt. Grace Blodgett

Dick Sargent

Lt. Belden 'Barney' Alderson

Larry Storch

Cpl. Gavoni

Robert F. Simon

Lt. Col. M.B. Larrabee

Paul Carr

Arthur Werbel

Vito Scotti

Maj. Alfredo Fortuno

Crahan Denton

Maj. Gen. Snowden

Gregory Walcott

Capt. Howard

Charlie Briggs

Gorkow

Bobby Darin

Cpl. Jim Tomkins

Barry Atwater

Maj. Dawes (uncredited)

Ted Bessell

Carrozzo - Patient (uncredited)

Cal Bolder

Patient at Mental Ward (uncredited)

Marc Cavell

Patient (uncredited)

Ann Doran

Mrs. Pyser (uncredited)

Mike Farrell

Patient (uncredited)

Paul Lukather

Pilot (uncredited)

Titus Moede

Undetermined Role (uncredited)

Ken Swofford

Patient (uncredited)