• 
  Carlos Watson

  6 episodes, 2018
• 
  Christina Greer

  3 episodes, 2018
• 
  Angela Lee Duckworth

  5 episodes, 2018
• 
  Ellen Langer

  4 episodes, 2018
• 
  Jeffrey Carr

  3 episodes, 2018
• 
  Constance White

  Self
• 
  Ange-Marie Hancock Alfaro

  Self
• 
  Brian Creech

  Self

• 
  Paul Hardart

  Self
• 
  Chris Jackson

  Self
• 
  Marcy McGinnis

  Self
• 
  Ntare Guma Mbaho Mwine

  Self
• 
  Gil Robertson

  Self
• 
  Danai Gurira

  Self
• 
  Trevor Noah

  Self

• 
  Bono

  Self
• 
  Jim Calder

  Self
• 
  Christina Green

  Self