After moving to Canada, Chien developed an interest in acting, and performed in musical theater productions in college.
Chien studied under Gokor Chivichyan and Gene LeBell at the Hayastan MMA Academy.
Chien also studied acting at Michael Beach's Actors Gym and Lee Strasberg Studio, among others.
During his career, Chien has worked in films like Crank, The Mummy: Tomb of the Dragon Emperor, Red Dawn, Fast Five, and Iron Man 3.
He has also worked on TV shows like NCIS: Los Angeles, The Guild, and Star Trek: Enterprise.