Nick Jr./Number of the Day 20 (from Sesame Street)

Cast

 * Mailbox (from Blue's Clues) as Count von Count
 * Benny the Bull (from Dora the Explorer), Maggie (from Maggie and the Ferocious Beast), Magellan (from Eureeka's Castle), Ruby (from Max and Ruby), Little Bear (from Little Bear), Pail (from Blue's Clues), Robin the Frog (from Muppet Time), Jane Kangaroo (from The Wubbulous World of Dr. Seuss), Oswald (from Oswald), Trixie (from LazyTown), Huckle Cat (from The Busy World of Richard Scarry), Shimmer (from Miss Spider's Sunny Patch Friends), Bob the Builder (from Bob the Builder), April Glover (from Little Bill), Austin (from The Backyardigans), Deema (from Bubble Guppies), Kipper the Dog (from Kipper), Marina (from The Fresh Beat Band), Charley (from Maisy) and Peppa Pig (from Peppa Pig) as Pipe Organ