Joan Ganz Cooney as Self

Jim Henson as Self (archive footage)

Jon Stone as Self (archive footage)

Frank Oz as Self (archive footage)

Caroll Spinney as Self

Bob McGrath as Self

Sonia Manzano as Self

Emilio Delgado as Self

Lloyd Morrisett as Self

Sharon Lerner as Self

Christopher Cerf as Self

Roscoe Orman as Self

Brian Henson as Self

Lisa Henson as Self

Loretta Long as Self

Fran Brill as Self

Norman Stiles as Self

Holly Robinson Peete as Self

James Earl Jones as Self (archive footage)

Stevie Wonder as Self (archive footage)

Muhammad Ali as Self (archive footage)

Matt Robinson as Self (archive footage)

Odetta as Self (archive footage)

Jesse Jackson as Self (archive footage)

Joe Raposo as Self (archive footage)

Nick Raposo as Self

Johnny Cash as Self (archive footage)

Dizzy Gillespie as Self (archive footage)

Johnny Carson as Self (archive footage)

Frank Biondo as Self

Will Lee as Self (archive footage)

Orson Welles as Self (archive footage) (uncredited)

Fred Rogers as Self (archive footage) (uncredited)