If I get to play a character, it's usually in a game that wasn't supposed to be a one off, but ends up that way...
Still have my hacker, that, through the corse of a few GMs went around the world, and ended up buying hirself a Unicorn, and modifying it to be a VTOL reconnaissance, and hacking hub.
That is so far the only character of mine that's been in more than one game, and more than 2 sessions.