• 
  David Lynch
• 
  Deepak Chopra

  Himself - Author, Spirtual Teacher
• 
  Mike Love

  Himself - Singer, Beach Boys
• 
  Greg Reitman

  Himself
• 
  Pete Seeger

  Activist / Musician / Singer
• 
  Ted Turner

  Social Activist & Media Pioneer
• 
  Desmond Tutu

  Anglican Archbishop of Cape Town
• 
  Mairead Maguire

  Noble Peace Laureate

• 
  Lester Brown

  Founder, Earth Policy Institute
• 
  Fabien Cousteau

  Founder, Ocean Futures Socety
• 
  Dan Siegel

  Himself - Founder & Author of Mindsight
• 
  Ananda Giri

  Guru, Oneness Academy
• 
  Marc Barash

  Founder, Green World Campaign
• 
  Joe Circionne

  Founder, Ploughshares Fund
• 
  Donovan Leitch Jr.

  Musician (as Donovan Leitch)