The most charismatic anti-hero.

Not quite! There are two Krodo! One is a Warlock in Heroes 1-2, and the other is the king Barloq's mage from Might and Magic 4, whom you need to save from Lord Xeen. But Archibald managed to break away from his rotten past and asked the heroes to save his brother, even though he was betrayed! It takes tremendous willpower to rethink one's life like that. And it wasn't easy for Archibald to make that decision, given his life values! ;)