Sesame Street Stays Up Late/Powerpuff Girls

Cast

 * Big Bird as Boomer
 * Snuffy as Professor Utonium
 * Count von Count as Skinny Slim
 * Telly Monster as Big Billy
 * Grover as Brick
 * Cookie Monster as Bossman
 * Elmo as Butch
 * Prairie Dawn as Blossom
 * Oscar the Grouch as Mojo Jojo
 * Tiffy as Bubbles
 * Moishe Oofnik as Major Man
 * Mrs. Grouch as Sedusa
 * Rosita as Buttercup
 * Uncle Hank as Him