乔治·W· 布什

George W. Bush

饰：自己

Charles Benbrook

饰：Himself - Former Director, Board on Agriculture National Academy

Grace Booth

饰：Herself - Allergic to Genetically Modified Corn

Louise Gale

饰：Herself - Greenpeace International

Dave Henson

饰：Himself - Founder, Program on Corporation, Law and Democracy

Fred Kirschenmann

饰：Himself - Farmer and Director of The Leopold Center for Sustaina

Marc Loiselle

饰：Himself - Farmer, Saskatchewan, Canada

Darrin Qualman

饰：Himself - National Farmers Union, Canada

Exequiel Ezcurra

Exequiel Ezcurra

饰：Self - Director, National Institute of Ecology, Mexico

Percy Schmeiser

饰：Self - Farmer

Ignacio Chapela

Ignacio Chapela

饰：Self - Microbal Ecologist, University of California Berkeley

Andrew Kimbrell

Andrew Kimbrell

饰：Self - Executive Director, Center for Food Safety

Dan Quayle

饰：Self - Vice President & Chair, Council on Competitiveness,(archive footage)

Louise Schmeiser

饰：Self - Farmer