Caroll Spinney
Big Bird / Oscar the Grouch (voice)

Pam Arciero
Grundgetta (voice)

Carmen Osbahr
Rosita (voice)

Saman Rouhani
Grouchketeer

Megan Willis
Grouchketeer

Carisse Elizabeth Moy
Grouchketeer

Jamari Richardson
Grouchketeer

Richard Hunt
Two-Headed Monster (voice)

Jerry Nelson
Two Heated Monster / "In My Book" Singer (voice)

Fran Brill
Zoe (voice)

David Rudman
Top Ten Quiet Time Ideas Announcer (voice)

Martin P. Robinson
Telly Monster (voice)

Joey Mazzarino
The Wise Man (voice)

Ruth Buzzi
Suzie Kabloozie (voice)

Daphne Rubin-Vega
Herself

Steve Whitmire
Ernie (voice)

Frank Oz
Bert ("Naptime") (voice)