Sesame Street: Learning About Letters (1986)

Caroll Spinney

Big Bird/Oscar the Grouch (voice)

Martin P. Robinson

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

Pam Arciero

Dentist (voice)

Emilio Delgado

Luis Rodriguez

Jim Henson

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

Lena Horne

Self

Jerry Nelson

Mr. Johnson/Herry Monster/Townsperson (voice)

Frank Oz

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