"Sorry, am dumb..."Boy is a serf that has been commanded by the Emperor to manage the vox equipment for the Emperor's podcast.
TTS Canon Edit
Boy is very nasally and ignorant of current events, in part due to his illiteracy, and in part due to the Imperium placing little emphasis on educating the common masses. However, he has been studying under Rogal Dorn, who has encouraged him to aspire to be more than a mere serf. In fact, he affectionately calls Dorn "Dadorable," after his wall-name of "Lord Adorable."
When asked what his name was, the boy took too long, so in his impatience the Emperor simply had him renamed as "Boy."
Whereas Rogal Dorn has taken to looking after Boy, the Custodes are ambivalent to his needs, especially Karstodes, who finds his presence obnoxious and threatens multiple times to eject him and/or snap his neck. He also lost one of his eyes when Helbrecht smashed a teacup in his face. For some reason Boy is terrified of Cyberdong and believes him to be a harbinger of death, probably because of the skull that he wears.