Joe: A Real American Hero, Dr. Chang in the film 21 & Over, Shredder in Teenage Mutant Ninja Turtles II: The Secret of the Ooze, and as industrialist Jules-Pierre Mao in The Expanse.

After he graduated from college, Chau moved out to Los Angeles where he has remained since[3] and now lives with his wife and daughter.

[4] Chau has had a number of diverse roles, playing Chinese, Japanese and even Hmong characters, most notably as Dr. Martin Ng in the American sci-fi series Gemini Division, and as Dr. Pierre Chang in 17 episodes of ABC's Lost.

Chau has appeared as a guest star in The Adventures of Brisco County, Jr., The Unit, NUMB3RS, ER, Baywatch, Alias, Shark, Criminal Minds, Grey's Anatomy, JAG, Medium, The X-Files, Last Man Standing, and NCIS.

Chau portrayed mob-boss Mr. Keo in Cathy Yan's live action DC adaptation of Birds of Prey, starring Margot Robbie.