乔·罗根

Joe Rogan

饰：自己

Ralph Abraham

饰：Himself - Mathematician

Joel Bakst

饰：Himself - Rabbi

Steven Barker

饰：Himself - Pharmacologist

Susan Blumenthal

饰：Herself - DMT Volunteer, Writer

Erik Davis

饰：Himself - Writer

Patricio Dominguez

饰：Himself - DMT Volunteer, Shaman

Cynthia Geist

饰：Herself - DMT Study Nurse

Neal Goldsmith

饰：Himself - Psychologist

Charles Grob

饰：Himself - Psychiatrist

Graham Hancock

饰：Himself - Writer

Alex Grey

Alex Grey

饰：Himself - Artist

Roland Griffiths

Roland Griffiths

饰：Himself - Behavioral Pharmocologist

Terence McKenna

饰：Self - Writer & Cultural Commentator,(archive footage)

Daniel Pinchbeck

Daniel Pinchbeck

饰：Self - Writer

Mitch Schultz

饰：Self

Dennis J. McKenna

饰：Self - Ethnopharmocologist

Ralph Metzner

Ralph Metzner

饰：Self - Psychologist

Jeremy Narby

Jeremy Narby

饰：Self - Anthropologist

Douglas Rushkoff

饰：Self - Writer

Rick Strassman

饰：Self - Psychiatrist