Playing the hit man in Orson Welles's Mercury Theater Cinemat Production of JOURNEY INTO FEAR; in real life he was not an actor but a producer, and one time Welles's manager.
He got his start in the film industry as a secretary to, then business manager, for, Gary Cooper.
Long an associate of Orson Welles, in radio, theater and cinema. Welles and he shared a considerable interest in prestidigitation, and it is said that Welles hired him because Moss knew magic tricks that Welles had never seen before.