Male/Doctor - Since his days as a human, he possessed a natural genius for science. - While highly capable and intelligent, his speech and behavior suggest poor social skills and psychopathic tendencies. - He seems to prefer being addressed as "Doctor" or having the title attached to his name rather than just being called by his name. - He led the project to create test subjects while he was human. - He held a high-ranking researcher position at Playtime Co. - He has immense self-confidence and does not easily trust others. - He keeps a test subject named Yannabi as if it were a pet cat. - Before the Hour of Joy, he became a test subject himself under the orders of Leith Pierre. - Even after becoming a test subject, his knowledge remained intact. He was used as a support AI until the Hour of Joy, when he took over the prison and gained the ability to move around using a spare body. - The spare body is quite tall, featuring a monitor for a head that displays a single eye (when the Doctor is connected), a metallic torso, and a tattered cloak. - He was the head of the B.B.I. Project.