乔治·麦加文

George McGavin

饰：Himself - Presenter

Jez Harris

饰：Himself

爱丽丝·罗伯茨

Alice Roberts

饰：Self - Presenter

Viktor Deak

饰：Self - Paleoartist

Peter de Menocal

Peter de Menocal

饰：Self - Columbia University

Bruce Bradley

饰：Self - Exter University