威廉·弗莱德金

William Friedkin

饰：Self - Director, The Exorcist

威廉·皮特·布拉蒂

William Peter Blatty

饰：Self - Author, The Exorcist

Jeffrey Lieberman

饰：Self - Chairman of Psychiatry, Columbia University,(as Jeffrey A. Lieberman)

Jeffrey Burton Russell

饰：Self - Author, The Prince of Darkness

加布里埃尔·阿莫思

Gabriele Amorth

饰：Self - Exorcist

Michael First

饰：Self - Clinical Psychiatrist,(as Michael B. First)