William Bruce Davis (born January 13, 1938) is a Canadian actor and director, known for his role as The Smoking Man on The X-Files. Besides appearing in many TV programs and movies, Davis founded his own acting school the William Davis Centre for Actors Study. In his personal life, Davis is an avid water-skier, works with the Canadian Cancer Society and lectures on skepticism most recently at Committee for Skeptical Inquiry's CSICON. In 2011 Davis published his memoir, Where There’s Smoke .... The Musings of a Cigarette Smoking Man.

William Bruce Davis est un acteur canadien né le 13 janvier 1938 à Toronto, en Ontario au Canada. Il a deux enfants.

William Bruce Davis, född 13 januari 1938 i Toronto, Kanada, kanadensisk skådespelare och mest känd för sin roll som Cancer Man (eller Cigarette Smoking Man) i TV-serien Arkiv X. Han medverkar också i TV-serien Stargate SG-1.

Professore di arti drammatiche alla Bishop's University in Canada, aprì a Vancouver il William Davis Centre, uno studio per attori.