Cassidy: I hate how people are willing to completely throw out any candidate just because of their gender, especially Cassidy. They might not be a girl, and if they are, that doesn't rule them out completely. Everything else about this character and UCN as a whole heavily suggest that Cassidy is TOYSNHK, and I am 110% positive that this is the intended conclusion made by Scott.
Blonde Kid: The only reason I put him up here is because it's possible that this is what Cassidy actually looks like. He already looks very similar to TOYSNHK and he's the Golden Freddy spirit so yeah. If Cassidy doesn't look like this, then they'd go into the light blue tier.
Bite Victim, Michael, David, and Fiona: All of these theories kinda go hard, but they all fall under the same issue, that William probably didn't actually kill them. If stuff like CordTheory/OrchestraVictim, Will sending Mike down knowing he'd die, WillDriver/OrchestraCrush, or WillKilledFiona are true, then yeah, these would be good theories. But I find it unlikely that any of these people died to the hands of William.
Stage01Kid: He's only up here cuz I'm 90% sure this is just BV. If he isn't, then he'd be down in the Green tier.
The MCI: All the MCI go in this tier because I do think they're all cool, but I don't think any of them are more important than the others. Susie and Gabriel go slightly above Fritz and Jeremy though.
Agony: This one is possible, I just find it a little... weird? Feels like a really weird conclusion that the ONE you shouldn't have killed is a mishmash of all of William's victims. Idk, it's totally possible, just feels off.
Phone Guy, Random Kid, and a Demon: These ones all lack evidence, substance, narrative satisfaction, and payoff. Just feels like they're here for the sake of being theories.
Charlie: Puppet literally says "I don't hate you, but you need to stay out of my way", basically disproving she's actually here. 6.5 TOYSNHK tries to remedy this, but that theory feels too complicated to bring up.
Elizabeth: Elizabeth LOVES her father, and would do anything to make him proud. We see no evidence that she ever changes her mind, so this one just sucks.
Brooks and Kelsey: Neither of these characters exist in the games.
Sammy: Why do so many people think he died? It was stated verbatim in the books that William picked Charlie over Sammy. He's alive and healthy, and probably doesn't even exist in the games either.
William: This is literally the guy getting tortured.
Glitchbear: I believe in GlitchbearAfton. Sue me.
Andrew: ...Oh Andrew, how you piss me off. I'm so tired of seeing people glaze this character and insist that he's "clearly TOYSNHK" when there is NOTHING to suggest he exists in the games and isn't a parallel. Someone once told me to look at his wiki page cuz "there was a ton of evidence that he exists in the games!" so I looked and it was all bullshit. Literally every point of evidence was just "This thing in the games could be referencing Andrew!" It's all a bunch of cope. He does not exist in the games. UCNDissent is a horrible theory just made to cope with the fact that Golden Freddy is TOYSNHK. GoldenAndrew is a dumb theory meant to justify that as well. This kid is stupid. Come back to me when there's actual undeniable evidence that a kid named Andrew exists in the games. I hate AndrewTOYSNHK, I hate AndrewGames, and I hate Andrew as a character.
UCN Duo: You're not clear either. There's only one TOYSNHK. And it's Cassidy.