The Yellow Rabbit (From Fnaf: Fazbear's Fright Into The Pit)
The Thing (Hello Neighbour)
The Guest (Hello Neighbour)
Robot (Rope Hero)
Ultron
The Hostile Mobs, excluding the Ender Dragon
The Anti-Christ.
Audrey 2
Technically the Absolute Solver, but they have only ever used female hosts, so they might be female, idk.
The absolute solver is a virus though, so probably no gender
AM
The mirror in Oculus
The Lord of the locusts
The asteroid from The Colour Out Of Space
The Amulet/Ikol
The boiled one
What do you think?