Avenue Q, The Muppets, Fraggle Rock, Jeff Dunham, My Little Pony: Friendship is Magic, Monsters University, The Year Without a Santa Claus, The Big Bang Theory and How the Grinch Stole Christmas/Number of the Day 20 (from Sesame Street)

Cast

 * Princeton (from Avenue Q) as Count von Count
 * Kate Monster (from Avenue Q), Rod (from Avenue Q), Nicky (from Avenue Q), Trekkie Monster (from Avenue Q), Kermit the Frog (from The Muppets), Miss Piggy (from The Muppets), Gobo Fraggle (from Fraggle Rock), Mokey Fraggle (from Fraggle Rock), Wembley Fraggle (from Fraggle Rock), Boober Fraggle (from Fraggle Rock), Red Fraggle (from Fraggle Rock), Peanut (from Jeff Dunham), Rainbow Dash (from My Little Pony: Friendship is Magic), Sulley (from Monsters University), Mike Wazowski (from Monsters University), Snow Miser (from The Year Without a Santa Claus), Heat Miser (from The Year Without a Santa Claus), Sheldon Cooper (from The Big Bang Theory), Penny (from The Big Bang Theory) and The Grinch (from How the Grinch Stole Christmas) as Pipe Organ