10 Supernatural Demons That Should Make An Appearance In Season 10.

Considering Dean Winchester's recent...predicament, there are a number of potential demon sitings that could add to this upcoming roller-coaster of a season. We can count on Crowley, but what other demons, or humans that may have turned demon, might show up?

10. Ava Wilson

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It was a tad heartbreaking discovering that Ava, one of the psychic children hand picked by the Yellow-Eyed Demon, was a baddie back in season 2, but if you're gonna be bad, go all out. And there's no way she got to heaven after what she did to Andy.

She was killed off after a confrontation with Sam and she'd surely love to get some vengeance by tormenting his big brother, Dean.

9. Jake Talley

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Speaking of the psychic children, Jake Talley would make an interesting addition to season 10. Though in this case, Dean would be the vengeful party.

Considering that Jake actually killed Sam and set Dean on his road to hell the first time around, I think Dean would use his newly acquired demon status to take a chunk or two out of Jake.

8. Kubrick

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Simply because it would be fun to see a Jesus-freak turned demon. What would that look like exactly?

I first thought of Gordon Walker, but seeing as he was turned into a vampire, he'd be in purgatory, but his stooge, Kubrick, died human. And he may have thought he was doing God's work, but the road to hell is paved with good intentions and he was hellbent on killing Sam. Literally.

7. Samuel Campbell

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Whether a whole other storyline could be squeezed out of Samuel seems unlikely, but Dean having a run-in with his good-gone-bad grandfather could sure make for an interesting scene, if not entire episode.

After his dealings with Cowley and his willingness to sacrifice his grandsons, it's a safe bet that Samuel made the trip downstairs.

6. Cain

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Cain has already stated that he's going to come calling on Dean at some point in the future.

The show really did a good job of making his character compelling. He's not as evil as the Father of Murder is always painted to be. Additionally, we've seen that he actually shares the protective older brother perspective that Dean has.

Unfortunately, his next appearance may very well be his last, but he could prove to be a true ally to both of the Winchester brothers.

5. Ruby

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There are a few character on this list that have already "died," but if there's one steadfast rule on this show, it's that death doesn't mean you're gone. And what actually happens when a demon gets stabbed with Ruby's knife? Maybe the demons are just permanently stuck in hell?

Whatever the explanation the writers may come up with could result in a pretty interesting match up. Ruby and Dean's powers would be on par with each other and it could become a battle of wits. Or maybe Dean would have a different take on Ruby now that he's a demon. Maybe they wouldn't be enemies at all. Hell, maybe Dean has a different take on Lucifer too.

4. Meg

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Again, dead, but what does that really mean? And in Meg's case, she was working with the boys even while being a demon. She even seemed to have something going with Castiel for awhile there. Not to mention she has excellent banter with everyone, especially Dean, as he's the snidest.

Even more intriguingly, she is a perpetual thorn in Crowley's side. What might a team up between Dean and Meg look like? Meg's probably Dean's best bet at a friendly demon, who isn't looking for revenge.

After all, it was Crowley that ended up "killing " her back in season 8, which allowed Dean to make his escape.

3. Alastair

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And rounding out our characters that should be irrevocably dead is Alastair. But how amazing would that be?

He has to be Dean's number one most hated foe, because Alastair broke Dean when he was in hell the first time. He turned Dean into a feared and knowledgeable torturing machine. Everything that Dean's hates most about himself, he found through working under Alastair.

The fact that Sam was the one to ultimately end Alastair seemed a little unjust. It should have been Dean. Maybe season ten can set up round two. This time Dean would be prepared.

2. Adam Milligan

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We still don't know for sure what happened to Adam, Sam and Dean's illegitimate half-brother. We know that at the end of season 5, he was possessed by Michael and was pulled into the pit with a Lucifer-possessed Sam. And he was never heard of again.

If Adam is still in the Lucifer pit, I think that a story-arch with him worming himself out, either into hell, or onto Earth, could create an amazing story arch. Because Adam? He's probably pissed.

Dean did try to make a deal with Death to get him out, for like a second, before he finally relented and said retrieving Sam's soul would be enough. Adam must have been there when Sam's soul was retrieved and he probably put together the rest.

If he's still possessed by Michael then there are two vengeful brothers in one. Michael would probably be after Castiel just as much as Adam would be after Dean. For that matter, Michael isn't heading Dean's fan club any time soon either.

1. Bela Talbot

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"We're all going to hell Dean. Might as well enjoy the ride."

Please? No, but really, can she come back? That would be the greatest thing ever. Granted, the actress has proven herself surprisingly resilient on The Walking Dead, but if she made a return to Supernatural as a demon (we know she was hellbound, the last we saw of her, she was waiting for the Hell Hounds to come).

She was widely hated by the fans when she was on the show in season 3 and it made sense. She was awful to the boys. She was conniving, manipulative, greedy, thieving, and in the end she even tried to kill them for a few extra years...she was basically a demon without having done the time in hell. Demon-Bela wouldn't be that different from human-Bela.

But now add demonic Dean to that formula. They were so evenly matched that their dynamic was still fun to watch. And this is the first time since season 3 that they'd be evenly matched again. Except it would be extra fun this time because Bela and Dean have lost any humanity filtering that they had before. They'd be unrestrained and unremorseful, but they don't actually have a reason to be enemies anymore. Any animosity would just be out of stubbornness. If you went the other way and they decided to help each other out, they'd be a formidable force.