I don't watch too much tv, but Harper from the Sharpe series is pretty good, fast thinker and isn't full of himself. Denny Craine from Boston Legal, now he was entertaining.
I can't think of any characters anybody except a very few would know >_>
If we're going awesome then... I'd have to say it's between Jack from Power Stone(albeit he's more awesome as a game character) and Gwen from TDI =P Yeah...