Neville

Neville is a one-shot villain from the short-lived comedy series known as Teen Angel, he is the infernal counterpart of Rod, who is depicted as God's cousin in the show - Neville in turn is seen as the Devil's cousin and has a mischievous nature as well as a love of bullying Rod (presumably the pair's adversaral relationship mirrors that of God and Satan).

Neville is basically an evil "twin" of Rod, being a semi-deity that appears as a floating head (just like Rod) but has demonic horns and a hellfire aura - being a comedy villain he is not that much of a threat but is a nuisance and Rod especially dislikes him.