Ann Morgan Guilbert

Ann Morgan Guilbert (born October 16, 1928) is an American actress, best known to television viewers for her portrayals of neighbor Millie Helper in 61 episodes of the early 1960s sitcom The Dick Van Dyke Show, and later as Yetta Rosenberg, Fran Drescher’s doddering grandmother, in 56 episodes of the 1990’s sitcom The Nanny.