Lanoy' Saevorb (Sounds identical to lanoisefforP - Imagination name)

Joker (He's a tad on the crazy side.)

Abracadabra (a song made by a band who made another song called "the joker")

Wizard! (Thats like a magician who usually say abracadabra)

Harry Potter(he's a wizard!)

Snape? (He is one of harry's teachers)