David was born in Buffalo, New York and grew up in Philadelphia. As a child he dreamed of becoming an actor, and when he graduated high school he moved to New York and studied acting at Ithaca College. After college, he moved to Los Angeles.
He got his first break when he played Kelly Bundy's boyfriend on the sitcom Married... With Children
(1987), but he was thrust into the limelight when he was tapped to play the vampire Angel in the successful Buffy, The Vampire Slayer
series (1997) and it's spin-off, Angel
David began playing Special Agent Seeley Booth in the hit Fox series Bones
with Emily Deschanel
In 2010, Boreanz admitted he cheated on his wife, then in July of that year an extra on Bones
announced she was suing Boreanz and the Bones
production company for her alleged sexual harassment by Boreanz and the production company's refusal to reprimand its star.