Art the Clown dons the appearance of a clown dressed in black and white costume. He is often shown carrying a black trash bag, in which he keeps his various crude weapons. His face is painted pale white, while his eyes, mouth, and (fake) eyebrows are painted black. He wears a white bald cap on his head, complete with a small black hat strapped on top. It is revealed in Terrifier that Art has a normal Caucasian skin tone, along with shaved eyebrows. He is depicted as being somewhat tall and having a thin build
Art's appearance changes drastically throughout the short films that are shown in All Hallows' Eve. In the first short VHS film, he has the appearance of a human clown. In the second and third short VHS films, his appearance has become more unsettling, with him having filthy, rotting teeth, an abnormally shaped head, deeply sunken cheeks, and an elongated, crooked nose that comes to an unnaturally sharp point (although this may be due to the usage of prosthetic facial features and makeup). Art dons this same appearance in the film Terrifier