 | Sigourney Weaver Ripley |
 | Charles S. Dutton Dillon |
 | Charles Dance Clemens |
 | Paul McGann Golic |
 | Brian Glover Andrews |
 | Ralph Brown Aaron |
 | Danny Webb Morse |
 | Christopher John Fields Rains |
 | Holt McCallany Junior |
 | Lance Henriksen Bishop II |
 | Christopher Fairbank Murphy |
 | Carl Chase Frank |
 | Leon Herbert Boggs |
 | Vincenzo Nicoli Jude |
 | Pete Postlethwaite David |
 | Paul Brennen Troy |
 | Clive Mantle William |
 | Peter Guinness Gregor |
 | Deobia Oparei Arthur |
 | Phil Davis Kevin |
 | Niall Buggy Eric |
 | Hi Ching Company Man |
 | Danielle Edmond Newt |
 | Tom Woodruff Jr. Lead Alien (uncredited) |
| Directing | |
| David Fincher | Director |
Camera | |
| Alex Thomson | Director of Photography |
Sound | |
| Elliot Goldenthal | Original Music Composer |
Writing | |
| David Giler | Screenplay |
| Walter Hill | Screenplay |
| Larry Ferguson | Screenplay |
Crew | |
| Chris Cunningham | Special Effects |
Production | |
| Gordon Carroll | Producer |
| Walter Hill | Producer |
Costume & Make-Up | |
| David Perry | Costume Design |
| Bob Ringwood | Costume Design |
Production | |
| Billy Hopkins | Casting |
| Priscilla John | Casting |
Directing | |
| Richard Styles | Third Assistant Director |
Visual Effects | |
| H. R. Giger | Creature Design |
Sound | |
| Robert Renga | Sound Recordist |
Editing | |
| David Crowther | Editor |
| Terry Rawlings | Editor |
Art | |
| Norman Reynolds | Production Design |
| Jim Morahan | Art Direction |
| Belinda Edwards | Set Decoration |
Costume & Make-Up | |
| Peter Robb-King | Makeup Department Head |
Art | |
| Robert J. Carlyle | Construction Coordinator |
| Gary A. Krakoff | Construction Coordinator |
| Jonathan McKinstry | Assistant Art Director |
| Janet Stevens | Sculptor |
Sound | |
| Gary S. Gerlich | Supervising Sound Editor |
| Harry E. Snodgrass | Sound Designer |
| David Lee Fein | Foley |
| Chris David | Sound Re-Recording Mixer |
| Richard Overton | Sound Re-Recording Mixer |
| Sergio Reyes | Sound Re-Recording Mixer |
Visual Effects | |
| Richard Edlund | Visual Effects Producer |
Crew | |
| Robert Wait | Visual Effects Editor |
| Marc Boyle | Stunt Coordinator |
Camera | |
| David Worley | Camera Operator |
| William D. Barber | Camera Operator |
| Wally Byatt | Camera Operator |
| Bob Penn | Still Photographer |
| Kate Robinson | Steadicam Operator |
Lighting | |
| Alan Martin | Gaffer |
| David Morani | Gaffer |
Production | |
| Kevin De La Noy | Location Manager |
Directing | |
| June Randall | Script Supervisor |
Crew | |
| Brian Bishop | Scenic Artist |
Production | |
| David Giler | Producer |
Art | |
| John Allenby | Property Master |
| Fred Hole | Supervising Art Director |
Directing | |
| Ken Shane | First Assistant Director |
Sound | |
| Matthias Gohl | Music Producer |
Directing | |
| Josh McLaglen | Second Unit First Assistant Director |
Writing | |
| Dan O'Bannon | Characters |
| Ronald Shusett | Characters |
| Vincent Ward | Story |
Production | |
| Ezra Swerdlow | Executive Producer |
| Sigourney Weaver | Co-Producer |
Camera | |
| Neil Binney | Camera Operator |
| Mike Frift | Camera Operator |
Lighting | |
| Dwight Campbell | Chief Lighting Technician |
Camera | |
| Colin Manning | Dolly Grip |
| Tony Cridlin | Dolly Grip |
| Gary Hutchings | Dolly Grip |
| Martin Kenzie | First Assistant Camera |
| Stefan Stankowski | First Assistant Camera |
| Keith Thomas | First Assistant Camera |
Lighting | |
| Dennis Brock | Gaffer |
| Vince Goddard | Gaffer |
| Jack Collins | Gaffer |
| Steve Kitchen | Gaffer |
Crew | |
| Mark Joiner | Generator Operator |
Camera | |
| Charles Saldaña III | Key Grip |
| Clive Mackey | Second Assistant Camera |
| Chyna Thomson | Second Assistant Camera |
| Adam Cooper | Second Assistant Camera |
| Nick Penn | Second Assistant Camera |
Production | |
| Barbara Harris | ADR Voice Casting |
| Lucinda Syson | Casting Assistant |
Costume & Make-Up | |
| Graham Churchyard | Assistant Costume Designer |
| Janet Lucas-Wakely | Wardrobe Assistant |
| Joe Hobbs | Wardrobe Master |
| Janet Tebrooke | Wardrobe Supervisor |
Editing | |
| Joanna Jimenez | Assistant Editor |
| Tony Tromp | Assistant Editor |
| David Orr | Color Timer |
| Keith Parrish | Color Timer |
Crew | |
| Simon Atherton | Armorer |
Production | |
| Carolyn Hall | Production Accountant |
| Avi Levy | Production Accountant |
| Janine Modder | Production Coordinator |
| Gretchen van Zeebroeck | Production Coordinator |
Art | |
| John Beach | Title Designer |
Sound | |
| Christopher Brooks | Music Coordinator |
| Craig Pettigrew | Supervising Music Editor |
Visual Effects | |
| Mauro Maressa | Animation Supervisor |
| Larry Weiss | CG Animator |
Crew | |
| Jim Rygiel | Digital Effects Supervisor |
Visual Effects | |
| Philip Crescenzo | Effects Supervisor |
| Paul Lasaine | Matte Painter |
| Annick Therrien | Roto Supervisor |
| Maura Alvarez | Rotoscoping Artist |
| Jammie Friday | Rotoscoping Artist |
| Nina Salerno | Rotoscoping Artist |
| Julia Rivas Frey | Visual Effects Coordinator |
| Russ Woolnough | Visual Effects Coordinator |
| Rick Fichter | Visual Effects Supervisor |
| George Gibbs | Special Effects Supervisor |
Costume & Make-Up | |
| Lisa Tomblin | Hairstylist |
| Carol Meikle | Hairstylist |
| Nick Dudman | Key Makeup Artist |
| Jane Royle | Key Makeup Artist |
| Susan A. Cabral | Makeup Artist |
| Peter Robb-King | Makeup Supervisor |
| Gary Bunn | Special Effects Makeup Artist |
| Scott Oshita | Special Effects Makeup Artist |
| Greg Cannom | Special Effects Makeup Artist |
Crew | |
| Laurie Kerr | Carpenter |
| Jamie White | Carpenter |
Art | |
| Greg Pruss | Concept Artist |
| Bill Welch | Construction Manager |
| Andrew Ackland-Snow | Draughtsman |
| Michael Boone | Draughtsman |
| Cathe Jones | Graphic Designer |
| Roy Rodgers | Sculptor |
| Laurence Burns | Standby Carpenter |
| Antonio Caccavale | Standby Painter |
| Martin Asbury | Storyboard Artist |
| Bill Stallion | Storyboard Artist |
| Mike Swift | Storyboard Artist |
| Brent Boates | Storyboard Artist |
| Tony Youd | Supervising Carpenter |
Production | |
| Patricia Carr | Production Supervisor |
Directing | |
| Martin Brierley | Second Unit Director |
| Chris Carreras | First Assistant Director |
| Jamie Christopher | Third Assistant Director |
| Marcia Gay | Second Assistant Director |
Sound | |
| Petra Bach | ADR Editor |
| Brad Brock | ADR Mixer |
| William C. Carruth | Supervising ADR Editor |
| Greg Curda | Foley Mixer |
| Ken Dufva | Foley Artist |
| Juno J. Ellis | ADR Editor |
| David Lee Fein | Foley Artist |
| Ron S. Herbes | Assistant Sound Editor |
| David Horton Jr. | Foley Editor |
| Jerry Jacobson | Foley Editor |
| Peter Lacey | ADR Mixer |
| Victoria Martin | Foley Editor |
| John Morrisey | ADR Editor |
| John Samworth | Boom Operator |
| Jim Shields | ADR Editor |
| Samuel Webb | Assistant Sound Editor |
Crew | |
| Simon Crane | Stunts |
| Nick Gillard | Stunts |
| Paul Jennings | Stunts |
| Sean McCabe | Stunts |
| Rann Miner | Stunts |
| Valentino Musetti | Stunts |
| Mark Anthony Newman | Stunts |
Camera | |
| Nic Morris | Second Unit Director of Photography |
Production | |
| Gill Case | Location Manager |
Art | |
| Jake Scott | Concept Artist |
Writing | |
| James Cameron | Characters |
Crew | |
| Chris Corbould | Special Effects Technician |
