SCP-106, also known as The Old Man, is a major antagonist in the SCP Foundation mythos. He is a Keter class humanoid SCP anomaly contained by the SCP Foundation. He also appears as the secondary antagonist of the video game SCP: Containment Breach and a playable character in SCP: Secret Laboratory. In Containment Breach, he was voiced by an uncredited Mark J. Hadley, who also voiced the Slender Man in Slender.