"Watching Christian Bale go on to do so many other things has been just awesome. "You can run down the wrong paths for a very long time and without guidance.A friend of mine who was going through a similar thing started meditating. In the middle of the hubbub, being at the center of the business, I didn’t have that time.
Liu also made a cameo appearance on Futurama (as herself and robot duplicates) in the episodes "I Dated a Robot" and "Love and Rocket", and on The Simpsons in the season 16 episode "Goo Goo Gai Pan." In 2002, Liu played Rita Foster in Vincenzo Natali's Brainstorm (a k a Cypher).
Soon thereafter, she appeared as O-Ren Ishii in Quentin Tarantino's 2003 film, Kill Bill.
Liu worked as a waitress at the Ann Arbor Comedy Showcase club circa 1988–89. While queuing up to audition for the musical Miss Saigon in 1990, she told The New York Times, "There aren't many Asian roles, and it's very difficult to get your foot in the door." She was cast in both Hercules: The Legendary Journeys in "The March to Freedom" and The X-Files in "Hell Money", In 1996, Liu landed her first role in the main cast of a television series, that of Amy Li in Pearl alongside Rhea Perlman and Malcolm Mc Dowell.
Shortly after the end of Pearl's run in 1997, Liu was cast in a role on Ally Mc Beal.
"Because I share experiences with them and understand a bit about what they are and what they do.