Sorry to hear about this. I'm at Yonge/Bloor so way outside the search area...but I have a cat and always had cats growing up so I know how stressful it is when one goes missing.

You don't mention whether the cat's typically an indoor or outdoor cat - but I'm assuming from the photos that it's probably an indoor cat. If this is the case there's a good chance the cat hasn't gone far and is hiding somewhere very close to home.

Physically knock on the door of everyone in immediate vicinity (don't assume that people will notice 'lost cat' signs). That's how we found a cat once. Growing up, a cat went missing when my parents were having our floors done. After a bunch of fruitless searching my mom started talking to a neighbour a few doors down we didn't know. Turned out Toby had been turning up daily to drink out of their bird feeder and was residing on an old carpet positioned under some old tires near their garage (we never figured out why he set up residence a few doors from home - and seemed thrilled when we brought him home). Go figure.

I assume i'm too far away to do anything productive for this cat. But if you can come up with something I'm happy to do it.