Can Sam(hain) the spirit of Halloween in Trick R Treat kill McBeth?
Unfortunately, we don't have much to go off of for Sam's canonical origins. He is described as a demon and a spirit, filling in the role of a supernatural enforcer of certain Halloween-related rules, and is shown to be hundreds or even thousands of years old. This doesn't really give us anything to work with when it comes to HOW he came to be.
The only thing I could find that even mentions Sam's creation is a statement from Quinn Lord, who played Sam in the film: Quinn said that Sam was "a demon who was born in a pumpkin patch." This unfortunately STILL doesn't give us a clear answer as to how Sam came to be; he could be a sentient demon-possessed pumpkin or he could be the spirit of a normal child who just so happened to be born in a pumpkin patch. There's also the very real possibility that this statement isn't even canon. We really don't know.
We have no indication of any relatives he might have, let alone a birth parent, and he is referred to with masculine pronouns, so the other Clauses don't disambiguate this either.
This looks like, unfortunately, another character that we cannot answer. Sorry! Thank you for your submission!
It's that time of year again where I relearn how to use markers!
For this Inktober I decided to do things a little differently. Instead of the prompts, I'm going to try and do a different horror media monster/villain each day. Movies, shows, manga, anime, games, anything horror related.