Alan Young was a British-born actor, who TV Guide called "the Charlie Chaplin of television".
Young in 1944
Connie Hines and Young in Mister Ed
Young with Olga San Juan c. 1950s
Mister Ed is an American television sitcom produced by Filmways that aired in syndication from January 5 to July 2, 1961, and then on CBS from October 1, 1961, to February 6, 1966. The show's title character is a talking horse which originally appeared in short stories by Walter R. Brooks.
Connie Hines and Alan Young in TV's Mister Ed
Leon Ames and Florence MacMichael