 Damon GameauHimself | Himself |
 Stephen FryThe Sugar Family Sketch | The Sugar Family Sketch |
 Brenton ThwaitesThe Liver Sketch | The Liver Sketch |
 Isabel LucasSugary Words | Sugary Words |
 Jessica MaraisSugar Emotion Sketch | Sugar Emotion Sketch |
| JJohn LearyBallet Business Man | Ballet Business Man |
 Nick BatziasFather | Father |
| KKatie BatziasMother | Mother |
 Annalise BraakensiekBikini girl on beach | Bikini girl on beach |
| KKieron RooneyScientist in Lab | Scientist in Lab |
 Gary TaubesSelf / Investigative Science Journalist / Author, Why We Get Fat | Self / Investigative Science Journalist / Author, Why We Get Fat |
 David WolfeSelf | Self |
| KKathleen DesMaisons, Ph.D.Self / President, Radiant Recovery | Self / President, Radiant Recovery |
 Thomas W. CampbellSelf / Author, "My Big TOE" / Retired NASA Physicist | Self / Author, "My Big TOE" / Retired NASA Physicist |
| PProfessor Nick AllenSelf / Psychological Science, U. Melbourne | Self / Psychological Science, U. Melbourne |
| KKelly BrownellSelf / Dean, Sanford School of Public Policy, Duke U. | Self / Dean, Sanford School of Public Policy, Duke U. |
| NNyurpaya Kaika BurtonSelf | Self |
| AAngela HammonsSelf | Self |
| LLarry HammonsSelf | Self |
| AAaron MathesonSelf / Wellness Leader | Self / Wellness Leader |
| HHoward MoskowitzSelf / Chairman, iNovum LLC | Self / Chairman, iNovum LLC |
| MMichael MossSelf / Author "Salt Sugar Fat" | Self / Author "Salt Sugar Fat" |
| BBarry PopkinSelf / Professor of Nutrition, UNC | Self / Professor of Nutrition, UNC |
| DDanielle R. ReedSelf / Member of Monell Chemical Senses Center | Self / Member of Monell Chemical Senses Center |
| JJean-Marc SchwartzSelf / Professor, Touro University, CA | Self / Professor, Touro University, CA |
| DDr. John L. SievenpiperSelf / Physician Scientist, Li Ka Shing Knowledge Institute | Self / Physician Scientist, Li Ka Shing Knowledge Institute |
| DDr. Edwin SmithSelf / Dentist, Kentucky | Self / Dentist, Kentucky |
| KKimber StanhopeSelf / Research Scientist / PhD. Nutritional Biology | Self / Research Scientist / PhD. Nutritional Biology |
| EEric SticeSenior Research Scientist | Senior Research Scientist |
| MMaurice ThompsonSelf / Amata Store Manager | Self / Amata Store Manager |
