The odd character I made, and have always loved: The Ogre Knight. In 2nd Ed D&D he was a Ogre that didn't want to just pillage and kill. He went looking for a better path (got kicked out cause he was a wuss by ogre standards, wouldn't eat a child, had to give creatures a fighting chance, liked veggies!!!) Met a old Paladin on the road, guy was blind but had good senses kind of thing. Knew enough common to talk together and traveled. Paladin died protecting the ogre from some crazed villagers that wanted to kill the ogre, something about hos the ogre had captured some man and must have tourtured him into slavery. The ogre, Rok was his name, kept trying to do good deeds and eventually became a Knight of Good, given special abilities by a group consensus of good dieties, no one would claim him, but as long as he was going to try to do good, why not help.
Few years ago I was play a Larp called SOLAR, Southern Organization of Live Action Roleplaying. Basicly Live action D&D (yes, I'm a big geek) And they have Half-ogre as a character race, and Knight as a subclass of fighter. In walks Rok the Ogreknight, and I swear more people poked and prodded me looking for the gimmick. When was I going to lead the Ogre hoards to their gate, what trick was I using to mimick Knight special abilities, etc. Some of the best roleplaying I;ve got to do in a LOOOOOOOOOOOOOOOONG time.