Simon Eriksson is Simon Mikaelson the son of Damon and Elijah Mikaelson-Salvatore. Stiles Stilinski is Gemini Mikaelson the son of Tyler and Klaus Mikaelson-Lockwood. Simon is a Original Vampire/Werewolf while Gemini is a Original Vampire/Werewolf/Witch/Fox, prince of hell, prince of heaven, prince of animals, prince of everything, prince of vampire, prince of werewolves, prince of witches.