达拉斯·坎贝尔
Dallas Campbell
饰:自己
大卫·巴蒂尔
David Baddiel
饰:自己
马库斯·杜·桑托伊
Marcus du Sautoy
饰:自己
邦妮·格里尔
Bonnie Greer
饰:自己
Robert Jastrow
饰:自己
Raymond Kurzweil
饰:自己
丹尼·华莱士
Danny Wallace
饰:自己
约翰·斯拉普内尔
John Shrapnel
饰:自己
Ian Deary
饰:Self - University of Edinburgh,(archive footage) (as Prof Ian Deary)
Edward Fredkin
饰:Self - Massachusetts Institute of Technology,(archive footage) (as Prof Edward Fredkin)
James Gould
饰:Self,(archive footage)
Chris Henshilwood
饰:Self,(archive footage)
Robert Plomin
饰:Self - Behavioural Geneticist
Steve Broder
饰:Self - California Cryobank,(archive footage)
Terrence Deacon
饰:Self - University of California, Berkeley,(archive footage) (as Prof Terrence Deacon)
Howard Gardner
Howard Gardner
饰:Self - Harvard Graduate School of Education,(archive footage) (as Prof Howard Gardner)
Vivian Hill
饰:Self - Institute of Education, University of London,(archive footage)