character - Self

character - Self - Presenter

character - Self - Presenter

character - Self

character - Self - Presenter

character - Self - Presenter

character - Professor Brian Cox

character - Presenter

character - Self

character - Self

character - Self - Presenter

character - Self - Narrator (archive sound)

character - Self - Presenter

character - Self - Host

character - Self - Host

character - Self

character - Self - Host

character - Self - Presenter

character - Self - Presenter

character - Self

character - Self - Presenter

character - Self

character - Self

character - Self

character - Self

character - Self - Presenter

character - Self

character - Self

character - Self - Presenter

character - Self - Presenter

character - Self

character - Self - Presenter

character - Self

character - Co-Presenter

character - Self - Presenter

character - Self

character - Self - Presenter

character - Self

character - Co-Presenter

character - Self

character - Self - Presenter

character - Presenter

character - Self - Presenter

character - Self - Panellist

character - Narrator

character - Self

character - Self - Guest

character - Self

character - Self - Host

character - Self

character - Presenter

character - Personter

character - Brian Cox (voice)