Howard Lyman

饰：Himself

Neal Barnard

Neal Barnard

饰：Self - President, Physicians Committee for Responsible Medicine,(as Dr. Neal Barnard)

奥普拉·温弗瑞

Oprah Winfrey

饰：Self,(archive footage)

Willow Jeane Lyman

饰：Self

丹尼斯·库钦奇

Dennis Kucinich

饰：Self - United States Congressman, Ohio 2004 Democratic Presidential Candidate,(as Dennis J. Kucinich)

John Stauber

饰：Self - Executive Director, Center for Media and Democracy

Robert Byrd

饰：Self,(archive footage) (as Sen. Robert Byrd)

Michael Hansen

Michael Hansen

饰：Self - Research Associate, Consumers Union, Yonkers, New York,(as Michael Hansen Ph.D.)