Baldur's Gate II
character who gets near to scraping the bottom of the barrel
of options in my opinion
First off - multi classing in a game with an experience cap is a mistake. It's that simple. Even when Jan is maxed out, he's a 13th level mage - which would acceptable for a backup mage if his other class was even remotely useful. But it's not.
Jan is good comic relief though - he's constantly trying to steal Boo from Minsc, and that's worth a few laughs. Not enough to keep Jan around mind you - but still.
Class: Multi Classed Thief/Illusionist
Alignment: Chaotic Neutral