John Lithgow eyed for Dumbledore in Harry Potter series Academy Award-nominated actor John Lithgow is reportedly closing in on a deal to play Headmaster Albus Dumbledore in the upcoming HBO Harry ...

As an actor, Robertson has been a series regular on Schitt's Creek, Comedy Inc., The Sean Cullen Show and Wingin' It. She also produced, created, wrote and costarred in the CBC special To Die Four.