Arthur/Sesame Street Stays Up Late

Cast

 * George as Baby Bear
 * Timmy Tibble as Bert
 * Arthur as Big Bird
 * Binky Barnes as Cookie Monster
 * Mr. Ratburn as Count von Count
 * Buster as Elmo
 * Tommy Tibble as Ernie
 * Toby, Slink and Portia Demwiddy as Grouches
 * David Read as Grover
 * Bionic Bunny, Mary Moo Cow and Nadine as Lambs
 * Oliver Frensky and Ed Crosswire as MNN Logo Monsters
 * Molly MacDonald as Mrs. Grouch
 * Rattles as Oscar the Grouch
 * Grandpa Dave, Grandma Thora and Jane Read as Penguins
 * D.W. Read as Prairie Dawn
 * Francine as Rosita
 * Mr. Haney as Snuffy
 * The Brain as Telly Monster
 * Fred Rogers as Uncle Hank
 * Pal as Wolfgang the Seal
 * Muffy as Zoe

The Disney Channel Characters as the International Sesame Street Muppets

 * Isabella Garcia-Shapiro (from Phineas and Ferb) as Alfa
 * Phineas Flynn (from Phineas and Ferb) as Bjarne Betjent
 * Stitch (from Lilo & Stitch: The Series) as Cousin Pepe
 * Mr. Whiskers (from Brandy & Mr. Whiskers) as Elmo-noske
 * Chaca (from The Emperor's New School) as Finchen
 * Ron Stoppable (from Kim Possible) as Kippi Ben Kippod
 * Ferb Fletcher (from Phineas and Ferb) as Max Mekker
 * Dr. Drakken (from Kim Possible) as Moishe Oofnik
 * Emperor Kuzco (from The Emperor's New School) as Samson
 * Malina (from The Emperor's New School) as Tiffy
 * Penny Proud (from The Proud Family) as Tita