Henri Donald Foster (July 31, 1889 – December 23, 1969) was an American actor who appeared in a number of television series during the 1950s and 1960s, including Perry Mason, The Addams Family, Bewitched and The Monkees. He played recurring character Herbert Johnson, the Baxters' dotty neighbor in the 1960s sitcom, Hazel. He also had bit parts in a few Hollywood films.