Characters played by Stephen Hawking
Self - Host
Self
Characters played by Kathy Sykes
Self
Characters played by David Attenborough
Self
Characters played by Richard Dawkins
Self
Characters played by Robert Winston
Self
Characters played by Aarathi Prasad
Self
Characters played by Maggie Aderin-Pocock
Self
Characters played by Jim Al-Khalili
Self
Characters played by Mark Evans
Presenter