Dr. Alice Roberts is a doctor, anatomist, osteoarchaeologist, and anthropologist. She teaches clinical anatomy, embryology, and physical anthropology at Bristol University and has presented a number of television programs in the UK, including Dr. Alice Roberts: Don't Die Young, Coast, The Incredible Human Journey and Digging for Britain. Alice is the author of The Complete Human Body.
Adrie and Alfons Kennis are twin brother paleo-artists from Arnhem in the Netherlands. They are fascinated with human evolution and specialize in three-dimensional reconstructions of animals and humans, which can be seen in various museums throughout Europe.