I've played a lot over the last few years, my current character, Leash, is a little odd in that he doesn't even want to be in the current adventure. Rather his character goal is he wants to go home, but due to cooperate weasels, debts to the company, and an explosive built into his head he's not in a position to just pack up and go.
Other characters include Epson Cannon (a comic obsessed 15 year old armed with a bat), Zara the Quarian and her robot bodyguard Murphy (the latter speaks in almost constant movie quotes), Bumgob the Right-Hand (an orc who works for the mafia), Hamish Sheepshank (an anthropomorphic otter sailor who speaks in an near-unintelligible Scottish accent), and my beloved Threeballs (an aged engineer in the Firefly universe who generally solves problems with fisticuffs, speaks like Rooster Cogburn from True Grit, and mystifies the players by explaining the origin of his nickname with a different story each time).