Looking good while battling evil isn't easy, but Baltazar managed it. A paladin of Iomedae, he gave much emphasis to his looks, in order to ensure that the proper image of a paladin of Iomedae would be conveyed. It didn't hurt that he was a handsome guy as well.
Baltazar may be charming, but he's not the brightest guy on the block, though he does have good intentions and a good heart, he's also easily distracted by other things, like a well-polished mirror.