| Jack Palance | ... | Joe Taylor | |
| Martin Landau | ... | Fred 'Sarge' Dobbs | |
| Tarah Nutter | ... | Sandy | |
| Christopher S. Nelson | ... | Greg | |
| Cameron Mitchell | ... | Hunter | |
| Neville Brand | ... | Leo | |
| Sue Ane Langdon | ... | Aggie | |
| Ralph Meeker | ... | Dave | |
| Larry Storch | ... | Scoutmaster | |
| Lynn Theel | ... | Beth | |
| David Caruso | ... | Tom | |
| Kevin Peter Hall | ... | The Alien (as Kevin Hall) | |
| Darby Hinton | ... | Randy | |
| Mark Ness | ... | Bill | |
| Bert Davis | ... | Man in Bar | |
| Jeffrey Sudzin | ... | Ambulance Driver |
Directed by | |||
| Greydon Clark | |||
Writing credits | ||
| Lyn Freeman | (written by) & | |
| Daniel Grodnik | (written by) & | |
| Ben Nett | (written by) & | |
| Steve Mathis | (written by) | |
Original Music by | |||
| Dan Wyman | |||
Cinematography by | |||
| Dean Cundey | (director of photography) | ||
Film Editing by | |||
| Curtis Burch | |||
Production Design by | |||
| Jack De Wolf | (as Jack DeWolf) | ||
Makeup Department | |||
| Greg Cannom | .... | special makeup | |
| Alistair Mitchell | .... | makeup artist | |
Production Management | |||
| Jefferson Richard | .... | production manager | |
Second Unit Director or Assistant Director | |||
| Caren Singer | .... | first assistant director | |
| Jeffrey Sudzin | .... | second assistant director | |
Art Department | |||
| Woody Perkins | .... | props (as Hayward Perkins) | |
Sound Department | |||
| Jean Clark | .... | boom operator (as Jean L. Clark) | |
| Bob Dietz | .... | production sound (as Robert Dietz) | |
| Earl Watson | .... | sound editor | |
Special Effects by | |||
| Joe Quinlivan | .... | special effects (as Phillip Joseph Quinlivan III) | |
| Dana Rheaume | .... | assistant special effects | |
Stunts | |||
| Bruce Paul Barbour | .... | stunts (as Bruce Barbour) | |
| Cindy Wills | .... | stunts | |
Camera and Electrical Department | |||
| Clyde E. Bryan | .... | first assistant camera | |
| Scott Buttfield | .... | gaffer | |
| Mike Connors | .... | grip (as Michael Connors) | |
| Hedy Dietz | .... | still photographer | |
| Tim Doughten | .... | grip (as Timothy Doughten) | |
| Brenda Haverstock | .... | electrician (as Brenda Havenstock) | |
| Howard Herrington | .... | assistant gaffer (as Howard Lee Herrington) | |
| Matia Karrell | .... | electrician (as Matia Karrel) | |
| Dylan Shephard | .... | key grip (as Dylan Sheppard) | |
| Thomas Vanghele | .... | second assistant camera (as Thomas P. Vanghele) | |
Costume and Wardrobe Department | |||
| Jack Buehler | .... | wardrobe | |
| Eloise Jensson | .... | special wardrobe (as Eloise Jenssen) | |
| Vera Mourdant | .... | assistant special wardrobe (as Vera Mordaunt) | |
Music Department | |||
| Dan Wyman | .... | electronic music realization | |
Other crew | |||
| Elizabeth Dale Baer | .... | production assistant | |
| David De Carlo | .... | production assistant | |
| Lee Harry | .... | production assistant (as Burton Lee Harry) | |
| Elliot Nachbar | .... | production assistant | |
| John Panzarella | .... | production assistant | |
| L. Steven Snyder | .... | production accountant | |
| Brenda Weisman | .... | script supervisor | |
Thanks | |||
| Mike MacFarland | .... | special appreciation | |
| Full cast and crew | Company credits | External reviews |
| News articles | IMDb Sci-Fi section | IMDb USA section |
Man I still remember this one and I was around 9 years old. I believe I saw it on HBO one night and it scared the crap out of me. Yes those blood sucking flying disks were very cool. I do not really remember the alien but those disks still freak me out. I have not seen it since but if I ever do see a copy of it on DVD I will add it to my collection. My kids would love it.