The Puppet Man, the only real inhabitant of vault 77. He found a box of puppets after being in the vault for a little over a year. One of the puppets "died" and he escaped with the "killer" a Vault-boy puppet. He soon took an ant as a ride, and was eventually caught by slavers. The slavers were soon butchered during the night by the killer, who in actuality was the puppet man using the vault-boy puppet. That is how he coped with loneliness in the vault, by creating new personas to match the puppets.