Richard Basehart

Cpl. Denno

Gene Evans

Sgt. Rock

Michael O'Shea

Sgt. Lonergan

Richard Hylton

Medic John Wheeler

Craig Hill

Lt. Gibbs

Skip Homeier

Whitey

Howard Banks

Doggie (uncredited)

Paul Burke

Doggie (uncredited)

George Conrad

Zablocki (uncredited)

Glenn Corbett

Lieutenant (uncredited)

James Dean

Doggie (uncredited)

John Doucette

18th Infantry Colonel (uncredited)

John Drexel

John (uncredited)

Pat Hogan

Jonesy (uncredited)

Tony Kent

Mainotes (uncredited)