演员
塞缪尔·杰克逊
Narrator (voice)
基思·大卫
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
