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
Sharon Lerner
Self
Christopher Cerf
Self
Roscoe Orman
Self
Brian Henson
Self
Lisa Henson
Self
Loretta Long
Self
Fran Brill
Self
Norman Stiles
Self
Holly Robinson Peete
Self
James Earl Jones
Self (archive footage)
Stevie Wonder
Self (archive footage)
Muhammad Ali
Self (archive footage)
Matt Robinson
Self (archive footage)
Odetta
Self (archive footage)
Jesse Jackson
Self (archive footage)
Joe Raposo
Self (archive footage)
Nick Raposo
Self
Johnny Cash
Self (archive footage)
Dizzy Gillespie
Self (archive footage)
Johnny Carson
Self (archive footage)
Frank Biondo
Self
Will Lee
Self (archive footage)
Orson Welles
Self (archive footage) (uncredited)
Fred Rogers
Self (archive footage) (uncredited)