Leviathan (Grid Series)

Leviathan is a member of the Dark Lords and is later revealed to be a spy within their ranks for a powerful Celestial Being (aka Orphan), he is the Primordial Patriarch of Monsters and creator of the Dragons and Serpents in The Grid Series, it is hinted that he has a Romantic relationship with the Dark Lord of Wrath and both of them are the least willing member of the Dark Lords as well as Beelzebub's desire for destruction.