He acted in Christopher Marlowe's play, "Doctor Faustus," at the Old Vic at the New Theatre in London, England with Mark Dignam, Cedric Hardwicke, Robert Eddison, Peter Copley, Donald Sinden (played Scholar, Envy, & Martino), Timothy Bateson, Norman Ayrton, Penelope Munday, Harry Andrews, Pauline Jameson, June Brown, and Faith Brook in the cast. John Burrell was director.
Peter O'Toole said on his commentary for the DVD version of The Ruling Class (1972) that Green was very depressed during filming, and he believes his death was probably a suicide.
