Which actress played Rachel Green’s sister Jill on Friends?
Answer
Reese Witherspoon
Answer
Reese Witherspoon
Reese Witherspoon played Rachel Green’s sister Jill on Friends.
Witherspoon appears as Jill Green in two episodes during Friends’ sixth season. Jill visits New York after being cut off financially by their father, but her attempt to become independent quickly turns competitive. She begins dating Ross Geller, partly because she wants to prove that she can have something Rachel does not.
The storyline uses the sisters’ contrasting personalities for comedy. Rachel is more established in New York by this point, while Jill is portrayed as privileged, impulsive, and inexperienced. Jill eventually leaves after Rachel and Ross’s complicated relationship makes the situation untenable.
Witherspoon later became especially associated with films such as Legally Blonde and Walk the Line, as well as television projects including Big Little Lies. Another actress, Christina Applegate, played Rachel’s sister Amy, which is why the two guest roles are frequently confused.
Source: Wikipedia · fact-checked Sept. 2026