Mordecai is born and raised in a world called Styck. Not a nice place, and definitely not a place that anyone has ever heard of. It's a world that has been struggling with it's existance for as long as anyone has known, mostly consisting of deserts and ruins of old.

Mordecai is physically very fit, tempered by his harsh home, and surprisingly well spoken for one coming from feral world. He tends to be wary of strangers but doesn't mind a good banter. Just keep your hands visible.
The clothing on Mordecai is simple; longcoat, stetson and pair of khaki coloured pants. They have seen better days, but remind him of where he came from.

Guns make laws, that's the way Mordecai sees it and lives by.