Tim Curry

Narrator (voice)

Joey Mazzarino

Joe Marley / Joey Dickens / Lightning (voice)

Kevin Clash

i-SAM / Elmo (voice)

Caroll Spinney

Oscar the Grouch / Big Bird (voice)

Kristin Chenoweth

Christmas Carol (voice)

Rickey Boyd

Rhubarb the Grouch (voice)

Matt Vogel

Additional Muppet Performer (voice)

Jim Martin

Additional Muppet Performer (voice)

Frank Oz

Bert (voice) (archive footage)

Jim Henson

Ernie (voice) (archive footage)

Martin P. Robinson

Snuffy (voice) (archive footage)

Pam Arciero

Additional Muppet Performer (voice) (archive footage)

Fran Brill

Additional Muppet Performer (voice) (archive footage)

Alice Dinnean

Additional Muppet Performer (voice) (archive footage)

Eric Jacobson

Additional Muppet Performer (voice) (archive footage)

Peter Linz

Additional Muppet Performer (voice) (archive footage)

Noel MacNeal

Additional Muppet Performer (voice) (archive footage)

Jerry Nelson

Additional Muppet Performer (voice) (archive footage)

Carmen Osbahr

Additional Muppet Performer (voice) (archive footage)

David Rudman

Additional Muppet Performer (voice) (archive footage)

John Tartaglia

Additional Muppet Performer (voice) (archive footage)

Steve Whitmire

Additional Muppet Performer (voice) (archive footage)

Bryant Young

Additional Muppet Performer (voice) (archive footage)

Carlo Alban

Carlo (archive footage)

Alison Bartlett

Gina (archive footage)

Desiree Casado

Gabi (archive footage)

Emilio Delgado

Luis (archive footage)

Will Lee

Mr. Hooper (archive footage)

Loretta Long

Susan (archive footage)

Sonia Manzano

Maria (archive footage)

Bob McGrath

Bob (archive footage)

Roscoe Orman

Gordon (archive footage)

Imani Patterson

Miles (archive footage)

David Langston Smyrl

Mr. Hanford (archive footage)

Charles Edward Hall

Santa Claus (archive footage)

Mark Aaron Beckett

Self (archive footage)

B. David Whithworth

Self (archive footage)

Glenny T

Self (archive footage)

Tony Zeke

Self (archive footage)

Calvin Powell

Self (archive footage)

Brian Gore

Snowman (voice) (uncredited)