Joe Rogan

Self - Host

Ralph Abraham

Self - Mathematician

Joel Bakst

Self - Rabbi

Steven Barker

Self - Pharmacologist

Cynthia Geist

Self - DMT Study Nurse

Susan Blumenthal

Self - DMT Volunteer

Patricio Dominguez

Self - DMT Volunteer

Neal Goldsmith

Self - Psychologist

Alex Grey

Self - Artist

Roland Griffiths

Self - Behavioral Pharmocologist

Charles Grob

Self - Psychiatrist

Kathleen Harrison

Self - Ethnobotanist

Terence McKenna

Self - Writer & Cultural Commentator (archive footage)

Erik Davis

Self - Writer

Graham Hancock

Self - Writer

James Kent

Self - Writer

Dennis J. McKenna

Self - Ethnopharmacologist

Ralph Metzner

Self - Psychologist

Christian Meuli

Self - DMT Volunteer, Family Physician

Jeremy Narby

Self - Anthropologist

Andrew Newberg

Self - Radiologist

David Nichols

Self - Medicinal Chemist

Daniel Pinchbeck

Self - Writer

Douglas Rushkoff

Self - Writer

Spiros Antonopoulos

Self - DMT Volunteer, Yoga Student

Leanna Standish

Self - Naturopathic Physician

Andrew Stone

Self - DMT Volunteer, Software Developer

Rick Strassman

Self - Psychiatrist

Robert Weisz

Self - DMT Volunteer, Clinical Psychiatrist

Ricardo Amaringo

Self

Alvin Joseph

Self

Jon Levin

Self

Aja Loux

Self

José Pineda Vargas

Self

Jordan Phillips

Self

Jose Plaza

Self

Mitch Schultz

Self

Rob Velez

Self

Fermin Quintuna

Self

Ede Frecska

Self - Psychopharmacologist