Arthur has mostly gray hair, thick gray brows, with brown eyes. He has deep emotions that carved lines on his face.
Arthur is a fairly religious man, with an optimistic outlook on life. He also prefers to be casual with other people, and insists that people refer to him by his first name instead of Father Blythe.
As a priest, he has been to all kinds of disasters and prayed to people who were heavily injured. He visited Heracles Hospital and met Nurse Ackerman a week before the events of the story to introduce himself to her.
Arthur has been called to the hospital to see the man in room 1280. He arrives at the hospital with his bike and met Mia Fremont, a new nurse in the hospital. They have a chat before they enter the building. Once Arthur arrived, a nurse explains that the man has been on life support for years until the state finally took him off it, but the man didn't die. When they take a look at the man's grotesque body, the nurses tell Arthur that the man is evil. They also believe that two entities are fighting for control within the man's brain.
Arthur doesn't believe that there's evil within the man and attempts to communicate with him. The man eventually spells out FAZBENTERDISCENTER, which a nurse figured out spells Fazbear Entertainment Distribution Center. Arthur believes the man wants to go there.
Arthur would then stay with the man daily. He also spent the rest of his time at the hospital trying to get permission to take the man to the distribution center. The nurses, on the other hand, planned to kill the man after learning that Arthur wants to take him to the distribution center. The three nurses (Nurse Ackerman, Nurse Thomas, Nurse Colton) then all tried to kill him, but a little boy stopped them from harming the man.
Arthur eventually gets permission to take the man to the distribution center. After they arrive, the man pointed at the largest building of the distribution center. Arthur puts the man in a wheelchair and takes him there. Once they arrive, the man begins to shake uncontrollably. His remains then heaved open, releasing a lot of tar-like substance. When Arthur looked at the man's remains, he sees tiny footprints coming from it. A man appears and asks him if everything is okay. Arthur, for the first time in his life, replied that everything is not okay.