From George Clooney to Julia Roberts: The Best Guest Stars on Friends

It may be all about the core six, but the gang had many famous faces join them along the way


In the season 8 episode "The One with the Halloween Party," we met Eric, a sweet school teacher who is engaged to Phoebe's twin Ursula, thinking that she's a similarly sweet teacher. After Phoebe breaks the news, they date for a bit – until he realizes he can't stand the sight of Ursula, and therefore, Phoebe too.