Donna and That Girl
Donna Reed and Marlo Thomas
Marlo Thomas (born November 21, 1937).
Margaret Julia "Marlo" Thomas is an American actress, producer, author, and social activist best known for starring in the sitcom That Girl (1966–1971). She has received four Emmys, a Golden Globe, and a Peabody Award for her work in television. She has also received a Grammy Award for her children’s album Marlo Thomas and Friends: Thanks & Giving All Year Long. In 2014, she was awarded the Presidential Medal of Freedom.
Thomas guest-stars on The Donna Reed Show in "Guests, Guests, Who Needs Guests" (Season 7, Episode 26).