'cause I know there's a buncha you us...
There was a show David Tennant was pitching to NBC, called "Rex Is (Not) Your Lawyer". In it, Tennant was to play a Chicago lawyer who has anxiety issues and stuff of that sort.
Well, it never got picked up, so there goes that. However, here's a clip from the pilot. For added fun, play the "What accent is he going for?" game.
Personally, he sounds like a Canadian trying to be a Midwesterner to me, though that was a difficult conclusion to reach. I prefer calling it "the Tommy Wiseau" accent.