Jim Henson
Self (archive footage)
Jon Stone
Self (archive footage)
Frank Oz
Self (archive footage)
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)
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)