Extreme Universe

Glavne uloge:

Dominic Frisby  >  Himself - Narrator
David J. Helfand  >  Himself - Quest University, Canada
Steve Jacobs  >  Himself - Chief scientist, Faraday Labs
Robert Hurt  >  Himself - Phd., Astronomer, Caltech
Geoff Marcy  >  Himself - University of California Berkeley
Phil Plait  >  Himself - Astronomer
Phil Plait  >  Himself - Phd., Astronomer
Robert Hurt  >  IPAC
Michelle Thaller  >  Herself - Phd., astronomer, NASA Goddard Space Flight Center
Oded Aharonson  >  Himself - Planetary scientist, CalTech
Robert Ballard  >  Himself - Oceanographer (as Robert Ballard)
Jay Melosh  >  Himself - Planetary scientist, University of Arizona
Mike Brown  >  Himself - Himself - Astronomer, Caltech
Daniel Dzurisin  >  Himself - Phd., Geologist, U.S. Geological Survey (as Dan Dzurisin)
Mark Young  >  Himself - Astrobiologist, Montana State University