The Artist is one of the primary antagonists of the ASMT series. He is set to possibly appear in Episode 3 and will serve as the main villain of Ep. 4.
The true identity of the Artist is a mystery; what is known about him is that he is the creator of Demo, Iris and the siblings and that he wants to capture Demo and Iris for unknown reasons.
The Artist's full powers are unknown, though he uses brainwashing to keep his creations under control.