My friend was an extra on Queer As Folk not too long ago....I think it paid about $10/hr. However, he said there was a lot of time waiting around on the set that he did not get paid for. A three hour shoot ended up consuming 6+ hours of his time.
Extras are a dime a dozen in Toronto - for the most part, they don't pay very well and aren't all that glamorous. But it depends on your part and what show it is.
did it a few years back...yeah, non-union, it's crap pay...plus you have to commit to an entire day coz you could be there anywhere from 4 or 5 to 16 hours...interesting to do a bunch of times but I'd only do it if you were desperate for cash and have exhausted other alternatives