 Morgan SpurlockSelf | Self |
| DDaryl IsaacsSelf - Internal Medicine | Self - Internal Medicine |
| LLisa GanjhuSelf - Gastroenterologist & Hepatologist | Self - Gastroenterologist & Hepatologist |
| SStephen SiegelSelf - Cardiologist | Self - Cardiologist |
| BBridget BennettSelf - Nutritionist & Dietician | Self - Nutritionist & Dietician |
| EEric RowleySelf - Exercise Physiologist | Self - Exercise Physiologist |
| MMark FentonSelf - Former Editor: Walking Magazine | Self - Former Editor: Walking Magazine |
| AAlexandra JamiesonSelf - Morgan's girlfriend & Vegan Chef | Self - Morgan's girlfriend & Vegan Chef |
| JJohn BanzhafSelf - Law Professor, George Washington University | Self - Law Professor, George Washington University |
| DDavid SatcherSelf - Former U.S. Surgeon General | Self - Former U.S. Surgeon General |
| LLisa YoungSelf - Professor of Nutrition, New York University | Self - Professor of Nutrition, New York University |
| KKelly BrownellSelf - Professor, Yale Center for Eating and Weight Disorders | Self - Professor, Yale Center for Eating and Weight Disorders |
| JJacob SullumSelf - Senior Editor, Reason Magazine | Self - Senior Editor, Reason Magazine |
| TTommy ThompsonSelf - Secretary of Health and Human Services | Self - Secretary of Health and Human Services |
| WWilliam J. KlishSelf - Head of Dept. of Medicine, Texas Children's Hospital | Self - Head of Dept. of Medicine, Texas Children's Hospital |
 Ron EnglishSelf - Artistic Genius | Self - Artistic Genius |
