Scientist Red is a sentient blob who was once a human but now is just a hot-headed red blob resembling a cartoony red slime creature. It has huge white cartoony eyes that cover half of its face and had a physical structure resembling a cartoony human except for the lack of any arms and the legs just being the slimy mess that is its bottom half. It has a skull and two sharpened bones on its left side as head accessories that were made of real bones.