Sesame Street: Learning About Letters

Caroll Spinney

as Big Bird/Oscar the Grouch (voice)

Martin P. Robinson

as Snuffy/Telly Monster/Buster the Horse/Irvine the Grouch (voice)

Pam Arciero

as Dentist (voice)

Emilio Delgado

as Luis Rodriguez

Jim Henson

as Ernie/Kermit the Frog/King Peter the Persnickety (voice)

Lena Horne

as Self

Jerry Nelson

as Mr. Johnson/Herry Monster/Townsperson (voice)

Frank Oz

as Cookie Monster/Bert/Grover/Princess Penelope (voice)