Kwong is co-artistic director of StoneCrabs and has trained as an actor at the Guildhall School of Music and Drama, and worked as an actor at the National Theatre London, Noel Coward Theatre, the Royal Court, Almeida, Bristol Old Vic amongst many other theatre venues. He also co-founded Yellow Earth Theatre, devoted to East Asian theatre works.

Kwong regularly runs directing and acting workshops in London, Tokyo, Hong Kong and Kuala Lumpur, as well as directing at drama conservatories. Besides his freelance actor/director work, Kwong also teaches at Regents University