Jill Green

Jill Green (Reese Witherspoon) — One of Rachel's two sisters, who arrives at Monica and Chandler's in "The One with Rachel's Sister", thinking Rachel still lives there. Their father has cut off Jill's supply of money and sent her to stay with Rachel, "the only daughter he's ever been proud of". She is spoiled a lot like her other sister Amy but is a lot kinder towards Rachel and her friends. Rachel tries to train Jill in the ways of the world but Jill just buys expensive things. She dates Ross to spite Rachel but leaves in "The One Where Chandler Can't Cry". A reference is made to Jill in Season 10 when Amy reveals she has gotten fat.