On screen
Cast
14 credited performers
Kate Mulgrew
Narrator
Michio Kaku
Himself
Lawrence Krauss
Himself
Charissa Saverio
Hologram
Artwork unavailable
Julian Barbour
Himself
Artwork unavailable
Robert J. Bennett
Himself
Artwork unavailable
John Byl
Himself
Artwork unavailable
Bernard J. Carr
Himself
Artwork unavailable
George F.R. Ellis
Himself
Artwork unavailable
John Hartnett
Himself
Artwork unavailable
Ron Hatch
Himself
Artwork unavailable
Martin Selbrede
Himself
Artwork unavailable
Robert Sungenis
Himself
Artwork unavailable
Max Tegmark
Himself