Tim Curry

~ as ~

Narrator (voice)

Joey Mazzarino

~ as ~

Joe Marley / Joey Dickens / Lightning (voice)

Kevin Clash

~ as ~

i-SAM / Elmo (voice)

Caroll Spinney

~ as ~

Oscar the Grouch / Big Bird (voice)

Kristin Chenoweth

~ as ~

Christmas Carol (voice)

Rickey Boyd

~ as ~

Rhubarb the Grouch (voice)

Matt Vogel

~ as ~

Additional Muppet Performer (voice)

Jim Martin

~ as ~

Additional Muppet Performer (voice)

Frank Oz

~ as ~

Bert (voice) (archive footage)

Jim Henson

~ as ~

Ernie (voice) (archive footage)