Sesame Street Stays Up Late/Regular Show

Cast

 * Big Bird as Mordecai
 * Elmo as Rigby
 * Grover as Benson
 * Cookie Monster as Skips
 * Telly Monster as Pops
 * Baby Bear as Muscle Man
 * Zoe as Margaret
 * Rosita as Eileen
 * Prairie Dawn as Audrey
 * Oscar the Grouch as Were-Skunk