Elmo loves his fuzzy, well-worn blue blanket more than anything in the whole world. However, when Elmo's blanket gets sucked through a colorful, swirling tunnel into Grouchland, the yuckiest place on earth, Elmo goes on an adventure to Grouchland to retrieve his prized possession.
Kevin Clash
as Elmo / Pestie / Grouch Jailer / Grouch Cab Driver (voice)
Mandy Patinkin
as Huxley
Vanessa Williams
as Queen of Trash
Sonia Manzano
as Maria
Roscoe Orman
as Gordon
Stephanie D'Abruzzo
as Grizzy / Pestie (voice)
Dave Goelz
as Humongous Chicken (voice)
Carmen Osbahr
as Rosita (voice)
Joey Mazzarino
as Bug (voice)
Jerry Nelson
as Count / Pestie / Grouch Mayor / Grouch Cop (voice)
Martin P. Robinson
as Telly / Pestie / Laundromad Guy (voice)
David Rudman
as Baby Bear / Fat Blue / Caterpillar / Pestie / Collander Stenchman / Ice Cream Customer (voice)
