This. I've never actually "seen" any of them or anything else, but have definitely had a handful of "conversations" over the years with things that definitely were not anything like the typical "head voices".
Can't discount schizophrenia. But one of them was someone I've never known or met, a young girl who got raped & murdered, attached to a fucking shirt my mother got from a thrift shop.
Had me track down the guy who'd killed her, in a Cali penal facility for it. Wanted me to take the damn shirt to him so she could haunt him.
Told her that was impossible for me & gave the shirt to some random homeless guy, never spoke to her again.