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)

Michael Landon
Little Joe (archive footage)

Lucien Morisse
Toccata (archive footage)

Pepe Martinez Blanco
Epi (voice) (archive footage)

Javier Dotú
Blas (voice) (archive footage)

Michael Earl
Mr. Snuffleupagus (archive footage)

Emilio Delgado
Luis (archive footage) (uncredited)

Loretta Long
Susan (uncredited)

Roscoe Orman
Gordon (uncredited)

Jerry Nelson
The Count / Mr. Johnson / ... (archive footage) (uncredited)

Arte Johnson
German Soldier (Wolfgang) (archive footage) (uncredited)