• 
  Gary Clark Jr.

  el însuși
• 
  Taylor Branch

  Himself
• 
  Buddy Guy

  Himself
• 
  Greg Tate

  Himself
• 
  Lucinda Williams

  Herself
• 
  Common

  Narrator
• 
  Peter Guralnick

  Himself
• 
  Tom Martin

  John Fahey (voice)

• 
  Dick Waterman

  Himself
• 
  Peniel E. Joseph

  Himself
• 
  Dave Dennis

  Himself
• 
  Robert Moses

  Himself
• 
  Amanda Petrusich

  Herself
• 
  Phil Spiro

  Himself
• 
  Ed Denson

  Himself