Heather Matarazzo was born November 10, 1982, and is an American actress. Her breakthrough role was as a geeky girl in the film Welcome to the Dollhouse. Her other movies include Sorority Boys, Scream 3, Saved!, and Hostel: Part 2. Besides Dollhouse, she's best known for her role as Lilly in The Princess Diaries and The Princess Diaries 2: Royal Engagement.