Randy Rogel is a writer, actor, musician and songwriter. He began as a writer for Batman: The Animated Series, but he soon moved on to Animaniacs, where he provided some of his best known work, including such memorable songs as "Yakko's World", "Yakko's Universe", "Wakko's America" and "Variety Speak". He also did some scripts and songs for House of Mouse. He currently serves as a writer for The 7D, alongside many of the other Animaniacs alumni. For Phineas and Ferb, he helped co-write the song "Sith-Inator" for the Star Wars special.