Self
Lyndon B. Johnson
Martin Luther King Jr.
Kwame Ture
Music
Nina Simone
Miriam Makeba
Pablo Milanés
Director
Santiago Álvarez
Animation
Pepin Rodriguez
Visual Effects
Jorge Pucheux
Editor
Idalberto Gálvez
Norma Torrado
Leo Brouwer
Adalberto Hernández
Carl Orff