Lucy Liu is an American actress, director, and artist who is best known for her role as Joan Watson in the CBS crime drama series Elementary. She portrays a former surgeon who assists Sherlock Holmes, played by Jonny Lee Miller, in solving crimes. Liu has also appeared in films such as Charlie's Angels, Kill Bill, and Kung Fu Panda. Liu has won numerous awards for her work, including a Screen Actors Guild Award and a Primetime Emmy Award nomination.