El astronauta Estadounidense William Stanaforth se embarca en una misión sin retorno para colonizar Marte.
Mark Strong
Captain William D. Stanaforth
Luke Wilson
Louis 'Skinny' Skinner (CapCom)
Sanaa Lathan
Captain Emily Maddox
Anders Danielsen Lie
Greenstreet
Charles Baker
Captain Frank Worsely
Bettina Skye
Nasa Technician
Nancy Rubel
Mission Control Technician (uncredited)
Joe James
Security Guard
