David Kowalski trained at the Stratford Festival Birmingham Conservatory before cutting his teeth in the Toronto fringe scene throughout the early 2000s. He is known for inhabiting working-class characters with a physicality that feels lived-in rather than performed, a quality that has made him a recurring presence in Walker East End cycle. His stage credits include productions at Canadian Stage, the Shaw Festival, and Theatre Passe Muraille. A film and television audience knows him from his supporting turn in the CBC medical drama Intake and a recurring role in the streaming science fiction series Dark Meridian. He is also a trained boxer, a fact that informs his work in ways that are hard to name but impossible to ignore.