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)

Lucien Morisse

Toccata (archive footage)

Pepe Martinez Blanco

Epi (voice) (archive footage)

Javier Dotú

Blas (voice) (archive footage)

Emily Squires