SCP-049 first appeared on the SCP Foundation collaborative writing wiki as a humanoid in plague doctor clothing who believes humanity is afflicted by a pestilence only he can cure. He became widely known to gamers through SCP - Containment Breach in 2012 and later SCP games and fan animations. Short clips of his polite, menacing voice were shared as soundboard sounds and in horror edits, and his calm delivery still signals a creepy doctor, an outbreak scene, or a containment failure in memes today.