Lucy Alexis Liu (born December 2, 1968) is an American actress, director, producer, visual artist, and humanitarian. Born in Queens, New York, to Chinese immigrant parents, she attended Stuyvesant High School and studied at New York University before transferring to the University of Michigan, where she earned a degree in Asian Languages and Cultures. During her senior year, she unexpectedly won the lead in a university production of Alice in Wonderland, an experience that encouraged her to pursue acting professionally.
After moving to Los Angeles, Liu built her career through guest appearances on television, including Beverly Hills, 90210, NYPD Blue, ER, and The X-Files. Her first regular television role came on the sitcom Pearl in 1996. She gained wide recognition after joining the cast of the Fox legal comedy-drama Ally McBeal as Ling Woo. Originally intended as a short-term character, Ling became a major presence on the series, and Liu received a Primetime Emmy nomination for Outstanding Supporting Actress in a Comedy Series. The role established her as one of the most prominent Asian American performers on American television during the late 1990s.
Liu moved rapidly into major film roles. She appeared in Payback and True Crime before playing Princess Pei Pei in Shanghai Noon opposite Jackie Chan. Her international breakthrough came with Charlie's Angels (2000), in which she played martial artist and computer expert Alex Munday alongside Cameron Diaz and Drew Barrymore. She reprised the role in Charlie's Angels: Full Throttle (2003). Other notable film work includes the musical Chicago (2002), Quentin Tarantino's Kill Bill: Vol. 1 (2003) and Kill Bill: Vol. 2 (2004), Lucky Number Slevin, The Man with the Iron Fists, Set It Up, and Shazam! Fury of the Gods.
Voice acting has been an important part of Liu's career. She voiced Master Viper in the Kung Fu Panda films and Silvermist in several Tinker Bell productions. She also contributed voices to The Tale of the Princess Kaguya, Strange World, and the Star Wars: Visions episode "The Duel."
On television, Liu later played Officer Jessica Tang in Southland, earning a Critics' Choice award for her guest performance. Her longest-running television role followed in Elementary, where she played Dr. Joan Watson opposite Jonny Lee Miller's Sherlock Holmes from 2012 to 2019. The series reimagined Watson as a woman and gave Liu a substantial dramatic role that further broadened her screen profile. She also appeared in Why Women Kill and A Man in Full.
Liu made her Broadway debut in 2010 as Annette in God of Carnage. She has also worked behind the camera, directing episodes of Elementary, Luke Cage, Graceland, Law & Order: Special Victims Unit, New Amsterdam, Why Women Kill, and American Born Chinese. Her producing credits include documentary and emerging-media projects.
Alongside acting, Liu has maintained an active career as a visual artist, working in photography, collage, painting, sculpture, and mixed media. She has exhibited in solo and group shows in the United States and abroad, sometimes using her Chinese name, Yu Ling. Since 2004, she has served as a UNICEF Ambassador, supporting children's rights and humanitarian programs. In 2019, she received a star on the Hollywood Walk of Fame, recognizing a career that has combined mainstream success with a broader contribution to Asian American representation.