Theotto is a teal Cthulhu, a mythical cosmic entity with the head of a cuttlefish/octopus, dragon wings, and a humanoid body. He has a light blue belly, and darker teal blue spots on his forehead. He has wings with his inner wings being a glittery blue-green color. He has a short tail with two short fins on his head. He has black eyes, pink blush, and four tentacles that cover his mouth.