Stanislav Grof

Stanislav Grof

饰：Self - psychiatrist

Martin A. Lee

Martin A. Lee

饰：Self - author

James S. Ketchum

James S. Ketchum

饰：Self - U.S. Army Colonel (Retired), Medical Corps

Franz X. Vollenweider

Franz X. Vollenweider

饰：Self - neuroscientist, University of Zürich

Carolyn Garcia

Carolyn Garcia

饰：Self - Merry Pranksters

Ralph Metzner

Ralph Metzner

饰：Self - psychologist

Nick Sand

Nick Sand

饰：Self - Millbrook Mansion

Roland Griffiths

Roland Griffiths

饰：Self - professor, Johns Hopkins University

Clark Martin

Clark Martin

Albert Hofmann

Albert Hofmann

饰：Himself (archive footage)

吉米·亨德里克斯

James Marshall "Jimi" Hendrix

饰：Himself (archive footage) (uncredited)

米克·贾格尔

Mick Jagger

饰：Himself (archive footage) (uncredited)

肯·凯西

Ken Kesey

饰：Himself (archive footage) (uncredited)

蒂莫西·利瑞

Timothy Leary

饰：Himself (archive footage) (uncredited)

约翰·列侬

John Lennon

饰：Himself (archive footage) (uncredited)

保罗·麦卡特尼

Sir James Paul McCartney CH MBE

饰：Himself (archive footage) (uncredited)

理查德·米尔豪斯·尼克松

Richard Milhous Nixon

饰：Himself (archive footage) (uncredited)

罗纳德·威尔逊·里根

Ronald Wilson Reagan

饰：Himself (archive footage) (uncredited)

Trevor J. Roling

饰：narrator in English version

汉斯彼得·米勒

Hanspeter Müller

饰：narrator in German version

Mario Scarabelli

Mario Scarabelli

饰：narrator in Italian version

Grateful Dead

饰：Themselves,(archive footage) (as The Grateful Dead)