One of my character's I've been playing off and on for almost 15 years now is a Gypsy named Carlos. Carlos is... well, a fantasy-themed Gypsy. Take Inigo Montoya, slap some coin belts and a sense of humor on him, dye him purple, and let him go. It's... interesting to play him.
With several of my characters, they hit points where they simply are done. Their story is over, they want to retire, and I let them. Carlos... not so much. He wanders into and out of my life, much like he wanders into and out of the lives of those around him. Hell, he's MY fictional creation, and I can't even keep tabs on him. (Is this what having kids is like?