Jayne was the mercenary you wanted at your side in a fight—as long as he was on your side (and as long as you were paying him enough to keep him there). The “public relations” expert on the ship, Jayne had a slippery notion of loyalty, but he was not without honor. Baldwin clearly relished the role, which he told the A.V. Club he approached “as a Western, with that sensibility. You can shoot someone in the back and rationalize it, because you’re out on the frontier.”