James Earl Jones

Self - Host

Caroll Spinney

Big Bird / Oscar the Grouch (voice)

Linda Bove

Linda

Bob McGrath

Bob Johnson

Alaina Reed Hall

Olivia Robinson

Will Lee

Mr. Hooper

Brian Muehl

Barkley (voice)

Frank Oz

Grover / Cookie Monster / Bert (archive footage)

Burt Lancaster

Self (archive footage)

Henry Winkler

Arthur "The Fonz" Fonzarelli (archive footage)

Ron Howard

Richie Cunningham (archive footage)

Michael Landon

Little Joe (archive footage)