John Clements

Milos Petrovitch

Godfrey Tearle

General von Staengel

Tom Walls

Kossan Petrovitch

Michael Wilding

Constantine

Mary Morris

Anna Petrovitch

Stephen Murray

Dr. Stephan Petrovitch

Stanley Baker

Petar

Robert Harris

Col. Von Brock

Niall MacGinnis

Dr. Jordon

Charles Victor

Sergeant

Tecwyn Jones

Danilo

Eynon Evans

Lieut. Banse

Ivor Barnard

Station Master

Ben Williams

Dragutin

George Merritt

A Yugoslav General

Finlay Currie

Priest (uncredited)

Herbert Lomas

Schoolteacher (uncredited)

John Slater

Minor Role (uncredited)