His name is Jeremy White, and according to Broadcast Dialogue, he'll be taking the air chair when there's a gap at AM 640. It's going to be interesting to hear him try - he has a lot of music radio experience, but none in the talk form. But he won't be idle between shifts - he's currently doing afternoon drive for a Concord, New Hampshire music radio station. 

No word yet on when he might make his debut in Toronto.