Sesame Street Stays Up Late/The Secret World of Alex Mack

Cast

 * Zoe as Alex Mack
 * Cousin Pepe as Ray Alvarado
 * Rosita as Annie Mack
 * Gordon as George Mack
 * Susan as Barbara Mack
 * Bjarne Betjent as Louis Driscoll
 * Moishe Oofnik as Dave Watt
 * Elmo as Scott Greene
 * Prairie Dawn as Jessica
 * Alfa as Kelly Phillips
 * Tiffy as Robyn Russo
 * Tita as Nicole Wilson
 * Mrs. Grouch as Danielle Atron
 * Oscar the Grouch as Vince Carter
 * Uncle Hank as Lars Frederickson
 * Herry Monster as Hunter Reeves