Kwok graduated from The Hong Kong Academy for Performing Arts (HKAPA) and Hong Kong Baptist University (HKBU). During his study in HKAPA, he was one of the major Tenor singers in the academy and had participated in many big scale stage productions produced by Drama School and professional companies. Apart from being the leading roles in several famous Broadway Musicals such as “Damn Yankee” as Young Joe, “Guys and Dolls” as Southern Benny, “West Side Story”. He also joined the first commercial musical production “Snow, Wolf, Lake” produced by a local famous pop singer Jacky Cheung, and acted as his understudy.

Kwok was employed as a full time actor by Hong Kong Repertory Theatre Ltd. (HKRT) during 1997 to 2007. Throughout his 10 years of professional career, he participated in a number of professional stage productions. Since 2007, Kwok has worked for different professional theatre groups, commercial companies, institutes and famous artists. His scope of works includes producer, playwright, play adaptation, director, composer and lyricist.

Kwok has also worked with different professional theatre companies in Hong Kong, such as Chung Ying Theatre, Exploration Theatre, Red Calf Theatre, Actors Family and Jumbo Kids Theatre Ltd.