Novel Main Character list : On screen character portrayal (Just the author's wish list)

Tyler Anderson: Alien Linguistics Specialist / Technician / Mechanic ( )  Dr. Sarah Jernigan: Biologist / Biochemist/ Emergency Medical Support (Andie Mcdowell/Terri Farrell Dr. Henry Slater: Geologist / Field Scientist () Dr. Andrea Wolfe: Geologist / Biochemist (Cosmonaut - Janeane Garofalo) Derek Gregorovich: Flight engineer / Mechanic / Technician (Cosmonaut - Lance Henrickson) Dr. Daniel Freeman: Metallurgist / Flight Engineer / Commander (Patrick Stuart /Robert Duvall) Sam Thomas: Flight specialist / Technician / Mechanic- Bill Paxton Dr. Jesse Wright: Assistant Director to NASA's DHEC  (My Senator-Fred Thompson / Wilford Brimely)