A long time acting teacher and former Artistic Director of The National Theatre School and The Vancouver Playhouse Acting School, as well as Owner and General Director of The William Davis Centre for Actors' Study, Davis has had to limit his teaching in recent years to make time, first for his acting career, and more recently for his film and television writing and directing careers.

As a consequence of his busy schedule, Davis' teaching is quite limited these days. He does, however, teach from time to time at the VanArts William Davis Centre.