Dr. Jill Roberts is a recurring character on the action/comedy series Chuck on NBC. She is a prominent figure in the series' mythology, though she did not appear until the middle of the second season. Jill is Chuck's ex-girlfriend from Stanford, and is portrayed by Jordana Brewster. Jill has made the most recurring appearances among Fulcrum agents in the series (with four appearances), surpassing Ted Roark and Vincent, who have each made three appearances.