Happy father's day from me and... my "dad"

Michael, do you see that small suit on the floor?

Me when a kid walks up to me:

The Poopet

I'm coming back...

Fix Fredbear

HO HO HO! Merry Killmas!

Shut up kid! I just need to borrow your father for a day. I need him tomorrow!

Happy Halloween!!! 🎃

(Teaser poster by @Zeph_Mations )

Who are these people and why are they in my own personal dimension?