Kevin Clash
Elmo / Baby Natasha (voice)
Bill Barretta
Louie (voice)
Steve Whitmire
Ernie (voice)
Eric Jacobson
Bert (voice)
Dick Maitland
Slimey (voice)
Caroll Spinney
Oscar the Grouch (voice)
Roscoe Orman
Gordon Robinson
Fran Brill
Zoe (voice) (archive footage)
Jerry Nelson
Herry Monster (voice)
Leslie Carrara-Rudolph
Abby Cadabby (voice)
Martin P. Robinson
Telly Monster (voice)
David Rudman
Martian / Baby Bear / Humphrey (voice)
Joey Mazzarino
Cousin Bear (voice)
Carmen Osbahr
Rosita (voice)