Tom Nook

Appearing in the video Animal Crossing, but explained with coffee, Tom Nook is the mayor of the Island DougDoug lives on in Animal Crossing New Horizons

Character History
While originally appearing to be a kind mayor who helps DougDoug coup with mental issues, he is later revealed to be keeping DougDoug and all other citizens prisoner on the island. DougDoug discovered this when he realized he has no contact with the outside world and that all the transportation off the island (all of which is controlled by Tom Nook) refuses to let him travel to any island that they do not own.

Escape
After realizing he is prisoner on Tom Nook's island, DougDoug imprisons Tom Nook in his office hoping to starve him to death. Realizing that Tom Nook could still call for help, DougDoug terraforms the island so that no outsiders can get in. When DougDoug realizes that the citizens may sympathize with Tom Nook by throwing food into his pen, he terraforms the entire island into a barren wasteland so that no citizens could provide food to his prisoner. After meticulously making sure Tom Nook can't get any sustenance to live off of DougDoug time travels to May of 2022, which he calculated to be when Tom Nook would starve too death. Upon steping into Tom Nook's office DougDoug discovered the dead starved carcass of Tom Nook.

Consequences
In the process of starving Tom Nook to death DougDoug accidently also starved every villager too death as well.