Dr. Rockzo

(Occasionally "Rockso.") Rock and roll clown, former frontman of Zazz Blammymatazz, and heavy drug user featured in numerous episodes of animated comedy Metalocalypse. Introduced in "Birthdayface" (first aired 20 Aug. 2006), Rockzo (real name Leonard Rockstein) is a fairly transparent parody of former Van Halen frontman David Lee Roth. After deciding that he wanted to be paid in cocaine, Rockzo left Zazz Blammymatazz for a short-lived solo career and a longer career as a birthday clown. His catchphrase, usually shouted in his distinctively whiny voice (provided by Tommy Blacha), is "I'm Dr. Rockso, the rock and roll clown! I do cocaine!"