Jim Abrahams

Self / Father / Founder, Charlie Foundation / Filmmaker

Vinnie Tortorich

Self / Narrator / Producer / Trainer / Author

Bret Scher

Self / Cardiologist

Drew Pinsky

Gary Taubes

Self / Journalist / Author

Dave Feldman

Self / Software Engineer

Adam Carolla

Eric Westman

Self / Internal Medicine Doctor

Andreas Eenfeldt

Self / Physician

Drew Pinsky

Self / Physician

Katy Sullivan

Georgia Ede

Self / Psychiatrist

Anna Vocino

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

Peter Pardini

Director

Peter Curtis Pardini

Director

John Honoré

Director de Fotografía

Peter Curtis Pardini

Sound Designer

Peter Curtis Pardini

Productor

Vinnie Tortorich

Productor

Serena Scott Thomas

Productor

Sonder Entertainment

Compañía de Produccion

Fat Squirrel Films

Compañía de Produccion

Gravitas Ventures

Compañía de Produccion

Peter Curtis Pardini

Editor

Cody Peterson

Sound Recordist

Matt Kendrick

Sound Recordist