• 
  Gregg Allman

  Himself
• 
  Sugar Blue

  Himself
• 
  Joe Bonamassa

  Himself
• 
  Shemekia Copeland

  Herself
• 
  Guy Davis

  Himself
• 
  Marc Maron

  Narrator (voice)
• 
  Pinetop Perkins

  Himself
• 
  Willie 'Big Eyes' Smith

  Himself

• 
  Elvin Bishop

  Himself
• 
  Hubert Sumlin

  Himself
• 
  Halldor Bragason

  Himself
• 
  Norman Dayron

  Himself
• 
  Robin Ford

  Himself
• 
  Nic Clark

  Himself
• 
  Gary Allegretto

  Himself