Self - Father / Founder, Charlie Foundation / Filmmaker

Jim Abrahams

Writing

Self - Narrator / Producer / Trainer / Author

Vinnie Tortorich

Acting

Self - Cardiologist

Bret Scher

Acting

Self - Journalist / Author

Gary Taubes

Acting

Self - Software Engineer

Dave Feldman

Acting

Self - Internal Medicine Doctor

Eric Westman

Acting

Self - Physician

Andreas Eenfeldt

Acting

Self - Physician

Drew Pinsky

Acting

Self - Psychiatrist

Georgia Ede

Acting

Self - Journalist

Nina Teicholz

Acting

Self - Explorer (archive footage)

Vilhjalmur Stefansson

Acting

Self - Biochemical Engineer

Ivor Cummins

Production

Self (archive footage)

Ancel Keys

Acting

Self - Physician

Jeffry Gerber

Acting

Self - Politician (archive footage)

George McGovern

Acting

Self - Orthopaedic Surgeon

Gary Fetke

Acting