Cujo

First appearance: Cujo (1983)

A heart warming tale of a dog that really wants to hang out with it's owner and her son.
Kinda like Ol' Yeller but with more scares.

Valak

First appearance: The Conjuring 2 (2016)

Ed and Lorraine Warren investigate the Enfield Poltergeist! But before that they investigated the Amityville House and Lorraine met a creepy ghost nun. Who is this nun? What does she have against the Warrens? Great follow up to the Conjuring.