크레딧 출연 Jim Abrahams Self / Father / Founder, Charlie Foundation / Filmmaker Vinnie Tortorich Self / Narrator / Producer / Trainer / Author Bret Scher Self / Cardiologist Gary Taubes Self / Journalist / Author Dave Feldman Self / Software Engineer Eric Westman Self / Internal Medicine Doctor Andreas Eenfeldt Self / Physician Drew Pinsky Self / Physician Georgia Ede Self / Psychiatrist Nina Teicholz Self / Journalist Vilhjalmur Stefansson Self (Archival footage) / Explorer Ivor Cummins Self / Biochemical Engineer Ancel Keys Self (Archival footage) Jeffry Gerber Self / Physician George McGovern Self (Archival footage) / Politician Gary Fetke Self / Orthopaedic Surgeon 스텝 Peter Curtis Pardini Directing Peter Curtis Pardini Editing Peter Curtis Pardini Production Vinnie Tortorich Production Serena Scott Thomas Production John Honoré Camera Cody Peterson Sound Matt Kendrick Sound Peter Curtis Pardini Sound