With his Canadian background, Dyneley frequently performed with a North American accent. He acted primarily in stage productions prior to 1954, when he turned his attention to film. On stage and in film, he regularly appeared opposite his second wife, the Actress Jane Hylton, whom he met on the set of the horror film The Manster (1959). He also appeared as a guest star in many television series. He spoke fluent French, German and Spanish. Dyneley died of cancer on 19 August 1977, Hylton of a heart attack 18 months later, on 28 February 1979.