Stevie Wonder as Self

Lin-Manuel Miranda as Self - Artist

Chris Rock as Self - Artist

Tony Lawrence as Self - Harlem Cultural Festival Producer & Host (archive footage)

Nina Simone as Self (archive footage)

B.B. King as Self (archive footage)

Abbey Lincoln as Self (archive footage)

Mavis Staples as Self - Singer (archive footage) (voice)

Mahalia Jackson as Self (archive footage)

David Ruffin as Self

Sly Stone as Self - Performer (archive footage)

Hugh Masekela as Self (archive footage)

John V. Lindsay as Self (archive footage)

Ray Barretto as Self - Performer (archive footage)

Herbie Mann as Self (archive footage)

Mongo Santamaría as Self - Performer (archive footage)

Questlove as Self (uncredited)

Luis A. Miranda Jr. as Self - Civic Leader

Walter Cronkite as Self - Host, CBS Evening News with Walter Cronkite (archive footage)

Malcolm X as Self - Activist (archive footage)

Martin Luther King Jr. as Self - Activist (archive footage)

Robert F. Kennedy as Self - Presidential Candidate (archive footage)

Richard Nixon as Self - 37th President of the United States (archive footage)

John F. Kennedy as Self - 35th President of the United States (archive footage)

Jesse Jackson as Self

Moms Mabley as Self (archive footage)

Max Roach as Self (archive footage)

Fidel Castro as Self (archive footage)

Redd Foxx as Self - Comedian & Actor (archive footage)

Dorinda Drake as Self - Festival Attendee

Barbara Bland-Acosta as Self - Festival Attendee

Darryl Lewis as Self - Festival Attendee

Gladys Knight as Self - Musician

Dinah Shore as Self (archive footage)

Buzz Aldrin as Self (archive sound)

Al Sharpton as Self - Minister & Activist

Marilyn McCoo as Self - The 5th Dimension

Sheila E. as Self - Musician

Berry Gordy as Self - Founder of Motown Records (archive footage)

Neil Armstrong as Self (archive sound)

George Kirby as Self (archive footage)

Willie Tyler as Self - Ventriloquist (archive footage)

Billy Davis Jr. as Self - The 5th Dimension

John Chancellor as Self (archive footage)

Dewey 'Pigmeat' Markham as Self (archive footage)

Adam Clayton Powell Jr. as Self - Performer (archive footage)

Roebuck 'Pops' Staples as Self - Performer (archive footage)

Harry Reasoner as Self (archive footage)

Selema Masekela as Self - Son of Hugh Masekela

Edwin Hawkins as Self - Performer (archive footage)

Kwame Ture as Self - Activist (archive footage)

Bones Howe as Self - Music Producer (archive footage)

Greg Errico as Self - Drummer, Sly & the Family Stone

Roy Ayers as Self

Musa Jackson as Self - Festival Attendee

Charlayne Hunter-Gault as Self - Former Reporter, The New York Times

Cholly Atkins as Self - Choreographer for Motown (archive footage)