艾伦·阿姆斯特朗

Alun Armstrong

饰：Narrator

Julian Hume

Julian Hume

饰：Self - Paleontologist

Andrew Kitchener

饰：Self - National Museums of Scotland

Beth Shapiro

饰：Self - Oxford University

Errol Fuller

饰：Self - Author 'The Great Auk'

William Joseph Elk III

饰：Clovus Man

Adrian Lister

饰：Self - University College London