Arthur

Arthur is the main character and first character to appear. He is also the antagonist. He first appears on Night 2.

Appearance
Arthur (in Arthur's Nightmare) has red pupils, purple skin, and pointed teeth. Everything else about his visual appearance is identical to the the TV series.

Mechanic
Arthur becomes a threat on Night 2. The only way Arthur can kill and jumpscare the player is if the player opens a door. This means that if the player stays in the room, Arthur cannot kill the player. His location can be known if the player uses the tracking device. He will move regularly on Night 2, and aggressively on the next nights. Arthur is also the main threat. He will spawn in his room and immediately move to the hallway, then wander in other rooms, finding the player. Arthur can jumpscare the player from any door. He can also jumpscare the player if the player goes down the staircase.

Night 2
Arthur will move regularly during Night 2. When the house turns red, Arthur will start moving faster.

Night 3
In the beginning, Arthur will start moving more aggressively, and due to D.W., this makes the game more difficult. When the house turns red, Arthur will start moving even faster.

Night 4
Arthur will move at his fastest during this night.

Trivia

 * Arthur is the only character that can spawn in 2 rooms; the Living Room and his room.