Samuel L. Jackson

Narrator (voice)

Keith David

Jack Johnson (voice)

Jack Johnson

Self (archive footage)

Stanley Crouch

Self - writer

James Earl Jones

Self - actor

Bert Sugar

Self - boxing historian

Gerald Early

Self - writer

José Torres

Self - Former Light Heavyweight Champion

Randy Roberts

Self - biographer

Jack Newfield

Self - journalist

W.C. Heinz

Self - sportswriter

George Plimpton

Self - writer