The Entity is a skeleton amalgamate but he isn't a Sans. He doesn't have any eyelights nor a single pinprick in his wide black eyesockets, he wore a long white coat with a black fur at the trim that covers half of his body completely. There is big stars infront of his chest to his abdomen reaching down into his abdomens that looked similar to a Save Point, he wears black pants and black boots. His appearance changes accordingly to the universe he enters, copying the Sans' attire in it.