Brian J. Doerner, from Kitchener, Ontario, Canada, is the current drummer for progressive rock band Saga, and hard rock band My Wicked Twin with his twin brother Brent Doerner. Brian has been playing music together with his brother since they were 8 years old. Brent was given a drum kit by their parents, which Brian took from him. Brian has been playing drums since that time. Brian Doerner also has a longstanding history with the Canadian rock band Helix, joining them twice.

Brian has been recognized as "one of Canada's top drummers".