Tim Curry

Character: Narrator (voice)

Joey Mazzarino

Character: Joe Marley / Joey Dickens / Lightning (voice)

Kevin Clash

Character: i-SAM / Elmo (voice)

Caroll Spinney

Character: Oscar the Grouch / Big Bird (voice)

Kristin Chenoweth

Character: Christmas Carol (voice)

Rickey Boyd

Character: Rhubarb the Grouch (voice)

Matt Vogel

Character: Additional Muppet Performer (voice)

Jim Martin

Character: Additional Muppet Performer (voice)

Frank Oz

Character: Bert (voice) (archive footage)

Jim Henson

Character: Ernie (voice) (archive footage)

Martin P. Robinson

Character: Snuffy (voice) (archive footage)

Pam Arciero

Character: Additional Muppet Performer (voice) (archive footage)

Fran Brill

Character: Additional Muppet Performer (voice) (archive footage)

Alice Dinnean

Character: Additional Muppet Performer (voice) (archive footage)

Eric Jacobson

Character: Additional Muppet Performer (voice) (archive footage)

Peter Linz

Character: Additional Muppet Performer (voice) (archive footage)

Noel MacNeal

Character: Additional Muppet Performer (voice) (archive footage)

Jerry Nelson

Character: Additional Muppet Performer (voice) (archive footage)

Carmen Osbahr

Character: Additional Muppet Performer (voice) (archive footage)

David Rudman

Character: Additional Muppet Performer (voice) (archive footage)

John Tartaglia

Character: Additional Muppet Performer (voice) (archive footage)

Steve Whitmire

Character: Additional Muppet Performer (voice) (archive footage)

Bryant Young

Character: Additional Muppet Performer (voice) (archive footage)

Carlo Alban

Character: Carlo (archive footage)

Alison Bartlett

Character: Gina (archive footage)

Desiree Casado

Character: Gabi (archive footage)

Emilio Delgado

Character: Luis (archive footage)

Will Lee

Character: Mr. Hooper (archive footage)

Loretta Long

Character: Susan (archive footage)

Sonia Manzano

Character: Maria (archive footage)

Bob McGrath

Character: Bob (archive footage)

Roscoe Orman

Character: Gordon (archive footage)

Imani Patterson

Character: Miles (archive footage)

David Langston Smyrl

Character: Mr. Hanford (archive footage)

Charles Edward Hall

Character: Santa Claus (archive footage)

Mark Aaron Beckett

Character: Self (archive footage)

B. David Whithworth

Character: Self (archive footage)

Glenny T

Character: Self (archive footage)

Tony Zeke

Character: Self (archive footage)

Calvin Powell

Character: Self (archive footage)

Brian Gore

Character: Snowman (voice) (uncredited)