I'll admit that I watched Smallville off and on during its run, and I actually liked Hartley's portrayal of GA on that show. If they were going to spin off something like this, I don't know why they wouldn't just cast him. They already had a Black Canary on Smallville as well, although if they recast it wouldn't be a big deal. I think they'd get a better audience if they tied into Smallville somewhat. I mean, they could probably talk some of the previous cast members (Welling, etc.) into making a guest appearance every so often too.