Lucy Alexis Liu (born December 2, 1968 in Queens, New York) is an Emmy Award-nominated American actress. She became known for her role in the television series Ally McBeal, Kill Bill and the Charlie's Angels films.

Liu began acting in 1989, after auditioning for a role in the University of Michigan's production of Alice in Wonderland during her senior year. Liu was cast in the lead role, although she had originally only tried out for a supporting part. Liu had small roles in films and TV (including the "Hell Money" episode of The X-Files and "The March to Freedom" episode on Hercules: The Legendary Journeys) before landing a role on Ally McBeal. Liu originally auditioned for the role of 'Nelle Porter' (played by Portia de Rossi), and the character 'Ling Woo'
was later created specifically for her. Liu's part on the series was
originally not meant to be regular but the enthusiastic audience
response to the actress' 'feisty' Ling Woo secured Liu as a permanent
cast member. It also earned her an Emmy nomination for Outstanding Supporting Actress in a Comedy Series, as well as a Screen Actors Guild Award nomination for Best Actress in a Comedy Series. Liu cemented her reputation playing bad girls by portraying "Pearl" the sadistic dominatrix/hit woman for the Chinese mafia in the film Payback (1999).

Liu became better known with her turn as Alex Munday in the Charlie's Angels film, alongside established Hollywood stars Drew Barrymore and Cameron Diaz.
The film opened in November 2000 and was a hit, earning more than $125
million in the U.S., and a worldwide total of more than $264 million.
The sequel, Charlie's Angels: Full Throttle,
opened in June 2003 and was a box-office hit again, earning more than
$100 million in the U.S., and a worldwide total of more than $259
million. In between the two films, Liu starred with Antonio Banderas in Ballistic: Ecks vs. Sever, a critical and box office failure.

Liu next played O-Ren Ishii, one of the major villains in Quentin Tarantino's 2003 film, Kill Bill. She won an MTV Movie Award for "Best Movie Villain" for the part. Subsequently, Liu appeared on several episodes of Joey with Matt LeBlanc, who played her love interest in the Charlie's Angels movies. She also had smaller roles as Kitty Baxter in the film Chicago, and as a psychologist opposite Keira Knightley in the thriller Domino. In 2006, she played leading lady and love interest to Josh Hartnett in the crime thriller Lucky Number Slevin. Other appearances include a cameo on the animated show Futurama and recently, The Simpsons.

In April 2006, the documentary Freedom's Fury premiered, with Liu as executive producer. The film dramatizes the 1956 Hungarian Revolution, climaxing with the infamous water polo showdown between Hungary and the Soviet Union at the 1956 Melbourne Olympics, known as the 'Blood in the Water match'.

Her film 3 Needles was released on December 1, 2006. In the film, she plays Jin Ping, an HIV-positive
Chinese woman. Liu agreed to star in the film for lower than usual pay
because she wanted to spread awareness about the way AIDS is improperly treated in China and Thailand. Liu's other recent roles include Code Name: The Cleaner, an action comedy released January 5, 2007 and, Rise, a supernatural thriller co-starring Michael Chiklis in which Liu plays an undead reporter, Watching the Detectives, an independent romantic comedy co-starring Cillian Murphy, and Kung Fu Panda, an animated film scheduled for 2008 in which she will voice a snake. Liu has also signed on to star in Beautiful Asian Brides and a new version of Charlie Chan which has been in pre-production since 2000; she will produce both films.

Liu has guest starred as lawyer Grace Chin on Ugly Betty episode 16 "Derailed" and episode 17 "Icing on the Cake".

She stars in the Sex and the City inspired TV show, Cashmere Mafia on ABC.

In 2007, Empire magazine named her among the "100 Sexiest Movie Stars".