Can objects like a character go from client side to server side?

Im using remote events but when i try to pass a character from client to server the server gets a nill. Did roblox disable objects getting pass this or am i doing something wrong?

all i wanted is a damage event so i was passing the target character from local script of hitbox to server so then the server did the damage by doing target humanoid:TakeDamage(damage), but it always gets nill...

Help plz

Apparently they can, but Roblox is seriously retarded.

What happens is when i test in studio the server gets from the client a nil when i try to send an object like a part or model.

But it works when i test with a local server and 2 players.

Roblox u are an ape fuck u