Characters played by Nigel Spivey
Presenter
Characters played by Vilayanur Ramachandran
Self - University of California
San Diego
Characters played by James David Lewis-Williams
Self - University of Witwatersrand
Characters played by Stefano Mariottini
Self - Fmr. Pakistan Commander
Characters played by Dominic Ffytche
Self - Institute of Psychiatry
Characters played by George Miller
Self
Characters played by David Attenborough
Self
Characters played by Margaret Thatcher
Self
Characters played by Neil Armstrong
Self