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