Ronald Reagan

Yank

Patricia Neal

Sister Margaret Parker

Richard Todd

Cpl. Lachlan "Lachie" MacLachlan

Anthony Nicholls

Lt. Col. Dunn

Howard Marion-Crawford

Tommy

Ralph Michael

Kiwi

Alfie Bass

Orderly

Orlando Martins

Blossom

Robert Douglas

Narrator (voice) (uncredited)

Clive Dunn

MacDougall (uncredited)

John Gregson

Recruit in Jungle (uncredited)

Sam Kydd

Driver (uncredited)