 | Lou Diamond Phillips als Vic Holden |
 | Todd Bridges als Peter |
 | Barry Corbin als Senator Frank Rawlings |
 | Amy Locane als Rosie Holden |
 | Steffanie Busey als Gina |
 | Sean Bott als Russell |
 | Steven Brand als Paul Fitzpatrick |
| Captain King als Phil Reisen |
| Derrick Costa als Alien |
| Joseph Daniel Hamilton als Sam |
| Kellie Hamilton als Miss Utah |
| Stephen Rippey als Robert |
| Scott Vandiver als Scotter |
| Lloyd Matthews | Creature Design |
| Tommy Alexander | Story |
| Gianni Capaldi | Producer |
| Richard A. Mazzochi | Property Master |
| Terence M. O'Keefe | Producer |
| Audra Rodgers | Unit Production Manager |
| Gabriel Bartalos | Special Effects |
| Dan Crawley | Mechanical Designer |
| Kelly Klindt | Grip |
| Timothy Reynolds | Electrician |
| Alex Menck | Music |
| Britani Alexander | Transportation Captain |
| Tom Batoy | Music |
| Mario DeAngelis | Set Dresser |
| Molly McGee | Special Effects |
| Chris Nielsen | Stunt Coordinator |
| Shawn Mehling | Casting |
| Christopher Dooly | Makeup Effects Designer |
| Eric Weiler | Production Design |
| Lynn Brannelly-Newman | Costume Design |
| Jason Rodgers | Second Assistant Director |
| Brandon Roye | Leadman |
| Gabriel Bartalos | Creature Design |
| Michael Roundy | Special Effects Coordinator |
| Craig C. Wallace | Gaffer |
| Brian Smith | Writer |
| Matthew Booth | Editor |
| Tommy Estridge | Assistant Property Master |
| Steven C. Laneri | Sound Mixer |
| Jodi Gleave | Key Makeup Artist |
| Nathan Forsgren | Second Assistant Director |
| Valentina Ciacci | Makeup Artist |
| Laurent Soriano | Camera Operator |
| Linda Leifer | Script Supervisor |
| Steve Beswick | Executive Producer |
| Collin Butrum | Transportation Coordinator |
| Frank Ippolito | Animatronics Designer |
| Turi Meyer | Director |
| Jonathan Roatcap | Set Dresser |
| Danelle Vierkant | Sculptor |
| Derrick Costa | Stunts |
| Eva Contis | Editor |
| Fred Hayes | Still Photographer |
| Michael G. Wojciechowski | Cinematography |
| Larry Litton | First Assistant Director |
| Rusty Fisher | Boom Operator |
| David Streefkerk | Sound Designer |
| Jonathan Sizemore | Grip |
| Jennifer Miller | Location Manager |
| Scott Vandiver | Producer |
| Anthony Julio | Special Effects |
| Brad Southwick | Line Producer |
| Franco Tortora | Music |
| Mark J. Mullins | Art Direction |
| Dan Gates | Creature Design |
| Ryan Roundy | Special Effects Coordinator |
| Brenton Chu | Camera Operator |
| Greg Bernstein | Legal Services |
