 He achieved the rank of Lieutenant-Commander and was awarded the Distinguished Service Cross.Returning to acting after the war, he both narrated and had a small on-screen role in "Scrooge" (1951); and portrayed the captain of the ship that Katharine Hepburn's and Humphrey Bogart's characters set out to destroy, whom they persuade to marry them just before they are to be executed, in "The African Queen" (1951).Bull was the first actor to portray Pozzo in the English-language version of Samuel Beckett's "Waiting For Godot" when it opened on 3 August 1955.