Joan Ganz Cooney

Self

Jim Henson

Self (archive footage)

Jon Stone

Self (archive footage)

Frank Oz

Self (archive footage)

Caroll Spinney

Self

Bob McGrath

Self

Sonia Manzano

Self

Emilio Delgado

Self

Lloyd Morrisett

Self

Christopher Cerf

Self

Roscoe Orman

Self

Brian Henson

Self

Lisa Henson

Self

Loretta Long

Self

Fran Brill

Self

Holly Robinson Peete

Self

James Earl Jones

Self (archive footage)

Stevie Wonder

Self (archive footage)

Muhammad Ali

Self (archive footage)

Odetta

Self (archive footage)

Jesse Jackson

Self (archive footage)

Joe Raposo

Self (archive footage)

Johnny Cash

Self (archive footage)

Dizzy Gillespie

Self (archive footage)

Johnny Carson

Self (archive footage)

Will Lee

Self (archive footage)

Orson Welles

Self (archive footage) (uncredited)

Fred Rogers

Self (archive footage) (uncredited)