>Who's the Orange Man? Why was there an animatronic outside his house?
Orange man is William before turning into a killer, he creates the bots so its not absurd to consider a bot would be around possibly.
>Why is he so nonchalant about his son breaking a window to leave the house? What's with the bar?
Because he's obviously drunk and abusive, the son is possibly Micheal (maybe) before crying child and Elizabeth were born, where Micheal ran away to, who knows.
>Who the fuck is Henry? Why is he still alive? Why did Freddy Fazbear go defunct for thirty years? If Freddy's was active while Fazbear's Fright was around, why didn't he sue it? Where does he get all this money?
Henry from my understanding (haven't read the books so I'm not 100%) is a co-founder/partner with William. Business with questionable choices always work our world already proves that.
>What the fuck is the dead cat?
May be a dog, since some people are claiming in the bedroom with Mangle in fnaf4 barking is heard but haven't gone to see myself.
If William was trying to find how to link souls with robots, an animal would be a good stepping stone to experiment and start with.
(Mangle may also be possessed by the dog) From what some are theorizing.
>Why did Henry finance and build an entire restaurant and giant furnace on the off chance that some animatronics would come to it?
Because Henry knows how the bots work, possessed or not, in one of the books, I think Freddy files, we know that Springtrap is attracted to the BBs noises because its in his "programming." So perhaps its in the rest of the bot's programming to "return."
Plus they needed souls or some shit to be whole or something.
>What the fuck is the ending with the graves supposed to be?
The original fnaf1 victims perhaps, some are thinking that Micheal was who we were playing all along and took upon those names for some moral justification or something.
(will continue in next post)