Kingdom of Knuffel

You're an angel that uses music to cheer people up.

You're the guardian angel of Invisible Friends. It's a motley lot you've got the care of, but you do your best!

a demon But a kind one!

You are the angel who keeps tea and coffee hot when it is poured into thin cups. You used to do soup, too, but promoted your assistant to that job so you could have more time. This way you can be more artistic with the curls of steam.

An agel hidden behind a silver demon.

You're a demon -the demon that gets into people when they drink, and makes it seem like a good idea to spray-paint all your boss's roses blue, or super-glue a monocle and tophat and clown nose onto Mozart's bust in the town square.
Either that or you're the angel that lets them get away with such things.

A demon of the stone snake family, like medusa or basilisks