Rick Doblin

饰：Self

Dennis J. McKenna

饰：Self,(as Dennis McKenna)

威廉·S·巴罗斯

William S. Burroughs

饰：自己

Wade Davis

饰：自己

莱斯利·艾文

Lesley Ewen

饰：Narrator,

Ralph Metzner

Ralph Metzner

Jeremy Narby

Jeremy Narby

Charles Grob

饰：Self

David Nutt

饰：Self

罗纳德·威尔逊·里根

Ronald Wilson Reagan

饰：Self,(archive footage)

Stanislav Grof

Stanislav Grof

饰：Self

H.F. Heard

饰：Self,(archive footage)

Roland Griffiths

Roland Griffiths

饰：Self

Michael Mithoefer

饰：Self

Amanda Feilding

饰：Self

理查德·米尔豪斯·尼克松

Richard Milhous Nixon

饰：Self,(archive footage)

阿尔多斯·赫胥黎

Aldous Huxley

饰：Self,(archive footage)