Stephen Hawking
— Self - Interviewee
Buzz Aldrin
— Self - Interviewee
Ray Kurzweil
— Self - Interviewee
Michio Kaku
— Self - Interviewee
Martin Rees
— Self - Interviewee
Ashton Kutcher
— Self - Interviewee
will.i.am
— Self - Interviewee
Shimon Peres
— Self - Interviewee
Peter Diamandis
— Self - Interviewee
Dean Kamen
— Self - Interviewee
J. Craig Venter
— Self - Interviewee