Michael Pollan as Self – Author, The Omnivore's Dilemma

Gerardo Reyes Chávez as Self – Coalition of Immokalee Workers

Eric Schlosser as Self – Author, Fast Food Nation

Tony Thompson as Self – Sheriff, Black Hawk County

Sarah Lloyd as Self – Dairy Farmer

Zack Smith as Self – Iowa Farmer, Co-Founder, Stock Cropper

Cory Booker as Self – US Senator

Jon Tester as Self – US Senator

Marion Nestle as Self – Prof. of Food Studies, Nutrition & Public Health, Emerita

Carlos Monteiro as Self – Prof. of Nutrition & Public Health, USão Paulo

Donald Trump as Self – 45th President of the United States (archive footage)