Replying...
Intro. Basil Karlo, the Clayface, was an actor in several films that were made in Gotham City, who went crazy when he learned of a remake of the classic horror film he had starred in, Castle of Dread, and who would not play the lead role. Adopting the persona of "Clayface" , the villain of one of his old films, he became a serial killer, targeting the cast and crew. He was eventually detained by Batman and Robin.

Clay Face (Basil Karlo)

@Bernardo