Stewart Granger as Maj. Richard Mace

Raf Vallone as Roberto Rocca

Mickey Rooney as Terence Scanlon

Edd Byrnes as Simon Fell

Henry Silva as John Durrell

William Campbell as Jean Saval

Peter Coe as Marko

Špela Rozin as Mila

Helmo Kindermann as German Fortress Commandant

Enzo Fiermonte as Gen. Quadri

Nan Morris as Stephana

Helmuth Schneider as German Patrol Boat Captain

Giulio Marchetti as Italian Officer

Nicholas Rend as Captain of Fishing Boat

Charles Brent as Monk