As the Metropolitan Museum of Art closes, Big Bird decides to leave his Sesame Street friends behind in search of Snuffy. Once locked inside for the night, educational hilarity ensues as Big Bird and Snuffy team up to help a small Egyptian boy solve a riddle - as the rest of the cast searches for their big, yellow friend.
James Mason
DemonJim Henson
Ernie (voice)Frank Oz
Bert / Cookie Monster / Grover (voice)Richard Hunt
Muppet Performer (voice)Jerry Nelson
The Count (voice)Paul Dooley
Museum Security GuardFritz Weaver
OsirisBrian Muehl
Telly Monster (voice)