Kristy Wu (born on October 11, 1982 in Los Angeles, California) is an American actress. She is best known for her recurring role as Chao-Ahn in the cult hit TV series, Buffy the Vampire Slayer and co-starring as Melissa Wu in Flight 29 Down. Other television credits include guest appearances on Joan of Arcadia, Freaks and Geeks and Moesha. Her silver screen appearances include What's Cooking?, Drive Me Crazy and Cry Wolf.