William Yun Lee (born March 22, 1971) is an American actor and martial artist. He is best known for his roles as Danny Woo in the supernatural drama Witchblade (2001-02) and Jae Kim in the sci-fi series Bionic Woman (2007). He has also appeared in the films Die Another Day (2002), Elektra (2005) and The Wolverine (2013).