• 
  Josh Tickell

  regizor

• 
  Ronald Reagan

  imagini de arhiva
• 
  George W. Bush

  imagini de arhiva
• 
  Dwight D. Eisenhower

  imagini de arhiva
• 
  Ryan Demaree

  departament sunet
• 
  Tina Imahara

  montaj
• 
  Gregory McClatchy

  producător
• 
  Robert Little

  producător

• 
  Daniel Assael

  producător
• 
  H.W. Pausch

  producător
• 
  Dale Rosenbloom

  producător
• 
  Rebecca Harrell

  producător
• 
  Woody Harrelson

  Himself - Actor/Environmentalist
• 
  Julia Roberts

  Herself - Actress/Spokesperson & Chair, School Bus America
• 
  Barbara Boxer

  Herself - Senator - California

• 
  Larry Hagman

  Himself - Actor/Renewable Energy Advocate
• 
  Sheryl Crow

  Herself - Musician/Environmental Activist
• 
  Willie Nelson

  Himself - Musician/Co-Founder, Farm Aid
• 
  Larry David

  Himself - Actor/Comedian/Environmental Activist
• 
  Josh Tickell

  Himself/narrator
• 
  Neil Young

  Himself - Musician/Co-Founder, Farm Aid
• 
  Johnny O'Hara

  scriitor