Douglas began playing in the Winnipeg symphony at the age of fifteen. He studied at the University of Toronto with Robert Aitken and Nick Fiore and received Canada Council grants and Chalmers awards for studies with Marcel Moyse, Jean Pierre Rampal, Julius Baker and James Galway. After winning first prize in the CBC Young Artist competition Doug became an active soloist and recitalist, often recorded for CBC broadcasts, appearing with orchestras including the Manitoba chamber orchestra, the Montreal Symphony and the Esprit orchestra where he is also currently the principal flute. He spent many years touring Canada, the US and Europe as a flutist with the York Winds. Doug played the original Toronto productions of Les Miserables, Miss Saigon, and Beauty and the Beast as well as numerous film scores. Much sought after as a teacher at U of T he has many former students playing professionally across Canada. Douglas has been the principal flute with the Canadian Opera Company since 1988.