Ronald Reagan as Yank

Patricia Neal as Sister Margaret Parker

Richard Todd as Cpl. Lachlan "Lachie" MacLachlan

Anthony Nicholls as Lt. Col. Dunn

Howard Marion-Crawford as Tommy

Ralph Michael as Kiwi

John Sherman as Digger

Alfie Bass as Orderly

Orlando Martins as Blossom

Robert Douglas as Narrator (voice) (uncredited)

Clive Dunn as MacDougall (uncredited)

John Gregson as Recruit in Jungle (uncredited)

Sam Kydd as Driver (uncredited)

Pamela van Dale as Burmese Woman (uncredited)

Ben Williams as Clerk at Hospital (uncredited)