Joe Rogan

Himself - Host

Alex Grey

Himself - Artist

Roland Griffiths

Himself - Behavioral Pharmocologist

Terence McKenna

Himself - Writer & Cultural Commentator (archive footage)

Graham Hancock

Himself - Writer

Dennis J. McKenna

Himself - Ethnopharmacologist

Ralph Metzner

Himself - Psychologist

Jeremy Narby

Himself - Anthropologist

David Nichols

Himself - Medicinal Chemist

Douglas Rushkoff

Himself - Writer

Andrew Stone

Himself - DMT Volunteer, Software Developer

Rick Strassman

Himself - Psychiatrist