Two parties, same world:
>Amnesiac android. Thinks she might be a princess trapped in a robot body. Doesn't like violence. Is the party tank.
>Son of wealthy land owners in a far off land, civil war stripped his family of their status. On the run and actually kind of enjoying it. Naive and full of wander lust. Good with a cavalry saber; not so good with straight up murder.
>Jaded cynical gun slinging con artist. Will get into anything for money, will get out of anything if his life is on the line.
>Mountain lion lady, hunter tracker. Kids are grown, husband dead, so she's off on adventure because why not. Brings a lot of levity and social lubricant to the otherwise self absorbed cast.
>Human child adopted by robot scrappers. Spent formative years wandering wasteland and bundled up head to toe. Basically thinks he's a robot, or at least hasn't been given a whole lot of reason to question it too deeply. Inherited a dead robot's rifle, it's nearly as big as him.
>Bison man. A shaman and kind of a pacifist; he doesn't really "fight" and he won't throw punches or wield weapons, but he's not above just picking people up and tossing them over his shoulder, which given his size, he often can.
>Robot butler/slave. Won in a poker game. Missing his arm, and with it his gun.* On a quest to find his arm. Serves/belongs to...
>Lady desperado. Con artist, mercenary, and in some regions a folk hero. Family lost their money so she turned to conning, robbing, and killing for it. She doesn't seem to bothered by it.
*My robot race here are all "born" with a gun in hand. General rule of thumb is they don't let anyone but the rightful owner touch a gun, and losing one is a big deal.