Donald Stewart (19101966) was an American actor and singer who settled and worked in the United Kingdom. Stewart appeared as a leading man in several British films of the 1940s such as The Peterville Diamond (1942) and One Exciting Night (1944). During the 1950s he appeared in character roles in films and increasingly on television. He was married to the actress Renée Houston.
Bio from Wikipedia - See more on en.wikipedia.org Text under CC-BY-SA license