Hmm...
Well, there was Klattu M. He was my PC, and then became an NPC once I assumed the role of DM. He was a half-drow alienist with delusions of godhood, mismatched eye color, and an attitude best described as bemused.
And there was Storm Drakeson, the blustery half-dragon dragonkin pirate who sailed the seven seas with his gang of bullywugs. His favorite activity was to get drunk and pull down trees with his bare hands.
And then there was Kojark, the Kapitan of the Kobold Kommandos and King of Kastle Kojark. He emphasised his Ks so strongly he spat, laughed furiously, and tormented the party to no end. The players hated him so much after one appearance that they spent hours coming up with interesting ways to kill him and mutilate his corpse. Charming.
Demiurge out.