For Disney, he voiced Captain Li Shang in Disney's 1998 animated feature film, Mulan, a role he later reprised in its sequel and the video game Kingdom Hearts II. He is well-known for his portrayal of Special Agent George Huang, M.D. in Law & Order: Special Victims Unit and Dr. Henry Wu in the first, fourth, and fifth Jurassic Park films, as well as his portrayal of Song Liling in the original stage play of M. Butterfly. He also played Howard Weinstein in Father of the Bride and its sequel, Dr. Wong in The Ref, and voiced Agent Will Du in Kim Possible. He even voices Toad Liu Hai in DuckTales.
- He was considered for the role of Qui-Gon Jinn in Star Wars: The Phantom Menace.