• 
  Samuel L. Jackson

  el însuși
• 
  James Cameron

  Himself
• 
  Penn Jillette

  Himself
• 
  John McDougall

  Himself
• 
  Dean Ornish

  Himself
• 
  Neal Barnard

  Himself
• 
  T. Colin Campbell

  Himself
• 
  Caldwell Esselstyn Jr.

  Himself

• 
  Andrew W. Saul

  Himself
• 
  Joel Fuhrman

  Himself
• 
  Michael Greger

  Himself
• 
  Scott Stoll

  Himself
• 
  Kim Williams

  Himself
• 
  Brooke Goldner

  Herself
• 
  Suzy Amis

  Herself

• 
  Jimmy Conway

  Himself
• 
  Andrea Conway

  Herself
• 
  Jeff Garrett

  Himself
• 
  Andrew Freeman

  Himself
• 
  Jeffrey Garrett

  Himself
• 
  Jarik Conrad

  Himself
• 
  Amanda McKinney

  Self