SCP-049 is the plague doctor entity from the SCP Foundation, a collaborative online fiction project built around fictional anomalous objects and creatures contained by a secret organisation. Dressed in a beaked mask and old-fashioned robes, he speaks politely while insisting he can cure a mysterious pestilence, a contrast that made him one of the community's most recognisable characters. Short voice clips of him spread through SCP fan videos, games and memes, and this simple hello survives because it captures his courteous menace in under two seconds.