yoooo uh. started up a session recently and theres like. twice the players then we signed up for appearently. They dunno whats going on, they just sorta appeared in my og coplayers houses. and mine theres a guy hiding in my cabinet. is this normal? are we supposed to kill em, friend em, what? did someone fuck everythin up?
there were uh four of us including me to start with, the other guys kinda look like us? i dunno whats going on lol
It's not normal-normal, but it's unusual-normal. Like, yeah, this shit happens, there is usually some explanation that comes later on, usually with time shenanigans, maybe ectobiology. It will settle eventually. Just nod and go along with it.
The game is a co-op. As such, you first approach should be to try to try to cooperate with the extra pals (friendship is not mandatory, but it might help to have positive rapport). If they do not cooperate, but aren't malicious, ignore them. If they are malicious, dispose of them with extreme prejudice.
With that being said, from your description there is a high probability these guys are your future selves about to fix up a screw-up you are about to commit or some fuckery you aren't responsible for and can't handle in your current state of powerlessness.
In which case, leave your future selves be and focus on your own game-goals, but if they tell you to drop down or not to go somewhere, take their word for it. Maybe offer them a refreshing beverage or a stuffed animals.