The Jester in Yellow is an entity of extremely high power, much higher than his own verse' tiering. He is beyond the baseline of boundless, and has the power to instantly supercede all narratives above and below. He is a servant to the Scarlet Demon, but even then, he is still stronger than him. His personality is calm, cold, and also quite depressed, due to his experiences with Calvin Desmet. He also despises humanity like the SCP Foundation, but respects the other fellow SCPs.