The overlook hotel

Jumanji

The void

The blob

The stuff

The doomberg

Any robot or AI villain like Megatron, Sentinel Prime, Vontra (Wild Robot), Auto (WALL-E), etc.

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