Ricky Ko Tsz-Bun is a film director from Hong Kong. He graduated in Australia in 1996 and returned Hong Kong. In 1997 he joined TVB as an assistant director and participated in the production of many large-scale dramas.

In 2004, Ko resigned from TVB and moved forward to film industry. Before transitioning to film director, Ko was a First Assistant Director in many films. In 2021, he directed his debut "Time" which received many awards and nominations. The film was being invited to many film festivals such as IFFR (International Film Festival Rotterdam), FEFF (Far East Film Festival), LEAFF (London Asian Film Festival), NYAFF (New York Asian Film Festival), VIFF (Vancouver International Film Festival), HKIFF (Hong Kong International Film Festival), AFFB (Asian Film Festival Barcelona), ZFF (Zurich Film Festival).