cast
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Jim Abrahams
Self - Father / Founder, Charlie Foundation / Filmmaker
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Vinnie Tortorich
Self - Narrator / Producer / Trainer / Author
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Bret Scher
Self - Cardiologist
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Gary Taubes
Self - Journalist / Author
- Dave Feldman Self - Software Engineer
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Eric Westman
Self - Internal Medicine Doctor
- Andreas Eenfeldt Self - Physician
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Drew Pinsky
Self - Physician
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Georgia Ede
Self - Psychiatrist
- Nina Teicholz Self - Journalist
- Vilhjalmur Stefansson Self - Explorer (archive footage)
- Ivor Cummins Self - Biochemical Engineer
- Ancel Keys Self (archive footage)
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Jeffry Gerber
Self - Physician
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George McGovern
Self - Politician (archive footage)
- Gary Fetke Self - Orthopaedic Surgeon