When did Castiel get an accent and personality?
Seriously though, trailer looks promising. I like that the look isn't overly dark or muddy, they seem to be allowing a bit of comic book influence without going too cheesy. The lead isn't quite what I pictured from the few comics I read (purely subjective of course) but seems to have potential. If I could tolerate Keanu I don't see why not to give this a shot.