Valentino is a sinner demon and one of the many Overlords of Hell. He is a major antagonist of Hazbin Hotel season 1, and one of the main antagonists of season 2, alongside Vox and Velvette.

He is the director and head of the porn studio within V Tower, and a member of the Vees. He is also the owner and boss of his films' star, Angel Dust, whom he has under soul contractual obligation.

In Hazbin Hotel, Valentino has a Spanish/Hispanic accent that he frequently switches with an American accent, The accent is often used to sound more "seductive" or "romantic", which he drops for a standard American accent when angry or nonchalant.