Elenco - Project Viper
Patrick Muldoon
Mike Connors
Theresa Russell
Dr. Nancy Burnham
Curtis Armstrong
Keach
Tamara Davies
Sid Bream
Lydie Denier
Diane Cafferty
John Beck
Simpkins
Joe Avalon
Sgt. Tulley
Daniel Quinn
Alan Stanton
James Cromwell
MP 1
Joe Sabatino
MP 2Billy Keane
Steve Elkins
Rod McCary
Dr. Shoup
Lorissa McComas
ChelseaWilliam Langlois
General Cartwright
Andy Milder
Chambers (Head of NASA)
Rene Rivera
Gonzales
Tim Thomerson
Sheriff MorganEric James Virgets
Deputy FergusonSteve Purnick
Mr. Norton
Adam Lieberman
Crewman TerranceDwayne Shattuck
Crewman Miller
Redmond Gleeson
Local Man
GiGi Erneta
Girl by Pool (uncredited)
Todd Kimsey
Crewman Mitchell