Marlo Thomas played Rachel's mother on the hit sitcom Friends, however Marlo Thomas was famous long before the show. Back in the 60's Marlo Thomas starred on her own popular sitcom called That Girl, which ran for 5 successful seasons (yes, she played the girl who the title refers to). The show was the first show to focus on a single woman who wasn't domestic or living at home, paving the way for such classics as The Mary Tyler Moore Show, Murphy Brown, and more recently, Sex and the City and 30 Rock. So now, enjoy an episode of That Girl starring Rachel's mom, Marlo Thomas!
And a short clip of Marlo Thomas on Friends: