Mary Lou Williams
Self (archive footage)

Alfre Woodard
Mary Lou Williams (voice)

Delroy Lindo
John Williams (voice)

Wendell Pierce
Andy Kirk (voice)

Stanley Crouch
Self

Robin D.G. Kelley
Self

Gary Giddins
Self

Tammy L. Kernodle
Self

Farah Griffin
Self

Gayle Murchison
Self

Alexandra Noailles
Self

Peter O'Brien
Self

Billy Taylor
Self

Geri Allen
Self - Performer

Esperanza Spalding
Self - Performer

Terri Lyne Carrington
Self - Performer

Wycliffe Gordon
Self - Performer

Carmen Lundy
Self - Performer

Joel Haberli
Barney Josephson / Critic (voice)

Robert Casteline
Critic (voice)