died July 27, 1984, Lausanne, Switz.
British stage and motion-picture actor best known for his urbane characterizations. During his 50-year acting career he played in 106 films.
Mason studied architecture before trying for a theatrical career. Following four years as a stage actor, his first film was Late Extra (1935). From then on he became one of the busiest of motion-picture actors. He proved to have great depth as an actor, as shown in The Seventh Veil (1945) and Odd Man Out (1947).
Having expressed dissatisfaction with the British film industry, he began to make motion pictures in the United States, where he again often found himself at odds with the industry establishment. His memorable voice and good looks aided in his development as an actor adept in portraying flawed individuals. He is well remembered for his performances in Madame Bovary (1949), The Desert Fox (1951), Five Fingers (1952), Julius Caesar (1953), A Star Is Born (1954), North by Northwest (1959), Lolita (1962), Georgy Girl (1966), The Boys from Brazil (1978), and The Verdict (1982).