Kevin Clash as Elmo (voice)

Leslie Carrara-Rudolph as Abby Cadabby (voice)

Ben Stiller as Stiller the Elf (voice)

Joey Mazzarino as Papa Bear / Stan the Snowball (voice)

Fran Brill as Prairie Dawn / Zoe (voice)

Jerry Nelson as Count von Count (voice)

Caroll Spinney as Big Bird / Oscar the Grouch (voice)

Steve Whitmire as Ernie (voice)

Eric Jacobson as Bert / Grover (voice)

David Rudman as Baby Bear / Cookie Monster (voice)

Martin P. Robinson as Mr. Snuffleupagus / Telly Monster (voice)

Carmen Osbahr as Rosita (voice)

Jennifer Barnhart as Mama Bear (voice)

Matt Vogel as Stiller the Elf

Bryant Young as Mr. Snuffleupagus

Kevin James as Santa Claus

Charles Gibson as Charles Blitzen (voice)

Steve Schirripa as Self

Tony Sirico as Self

Sheryl Crow as Self

Anne Hathaway as Self

Jennifer Hudson as Self

Alicia Keys as Self

Jamie Foxx as Self

Ty Pennington as Self

Brad Paisley as Self

Tyler Bunch as Additional Muppet Performer (voice)

Stephanie D'Abruzzo as Additional Muppet Performer (voice)

Pam Arciero as Additional Muppet Performer (voice)

Ryan Dillon as Additional Muppet Performer (voice)

Artie Esposito as Additional Muppet Performer (voice)

James Godwin as Additional Muppet Performer (voice)

BJ Guyer as Additional Muppet Performer (voice)

Andy Hayward as Additional Muppet Performer (voice)

Patrick Holmes as Additional Muppet Performer (voice)

John E. Kennedy as Additional Muppet Performer (voice)

Peter Linz as Additional Muppet Performer (voice)

Michael Lisa as Additional Muppet Performer (voice)

Noel MacNeal as Additional Muppet Performer (voice)

Amanda Maddock as Additional Muppet Performer (voice)

Ed May as Additional Muppet Performer (voice)

Paul McGinnis as Additional Muppet Performer (voice)

Tracie Mick-Shoemaker as Additional Muppet Performer (voice)

Marc Petrosino as Additional Muppet Performer (voice)

Andy Stone as Additional Muppet Performer (voice)

Ian Sweetman as Additional Muppet Performer (voice)

Gabriel Velez as Additional Muppet Performer (voice)