Steven Beck
Peter Weller
Dr. Glen 'Doc' Thompson
Richard Crenna
Helicopter Pilot
Larry Dolgin
Winch Operator
Pascal Druant
Steve Pelot
Lead Creature (uncredited)
Tom Woodruff Jr.
Elizabeth 'Willie' Williams
Amanda Pays
Buzz 'Sixpack' Parrish
Daniel Stern
Justin Jones
Ernie Hudson
Tony 'DeJesus' Rodero
Michael Carmine
Bridget Bowman
Lisa Eilbacher
C.P. Cobb
Hector Elizondo
Ms. Martin
Meg Foster
Russian Ship Captain
Eugene Lipinski
Original Music Composer
Jerry Goldsmith
Conductor
Story
David Webb Peoples
Screenplay
Casting
Mike Fenton
Executive Producer
Lawrence Gordon
Set Decoration
Robert Gould
Jeb Stuart
Key Hair Stylist
Aldo Signoretti
Production Design
Ron Cobb
Director of Photography
Alex Thomson
Special Effects Makeup Artist
John Rosengrant
Assistant Editor
Gillian L. Hutshing
Director
George P. Cosmatos
Producer
Aurelio De Laurentiis
Creature Design
Jon Curtis Price
Charles Gordon
Editor
John F. Burnett
Roberto Silvi
Luigi De Laurentiis
Costumer
Yvonne Zarb Cousin
First Assistant Editor
Richard Leeman
Augusto Grassi
Grip
Tony Cridlin
Orchestrator
Nancy Beach
Arthur Morton
Underwater Camera
Phil Barthropp
Makeup Artist
Katalin Elek
First Assistant Director
Kuki López Rodero
Negative Cutter
Aldo Manni
Assistant Hairstylist
Marina Marin
Second Assistant Director
David Turchi
Music Editor
Michael Dittrick
Mike Valentine
Additional Photography
Federico Del Zoppo
Second Second Assistant Director
Marco Alberti
Cinematography
Giuseppe Maccari
Ramón Bravo
Key Makeup Artist
Zoltan Elek
Assistant Camera
Ernesto Natoli
Electrician
Fabio Scepi
Supervising Music Editor
Kenneth Hall
Luca Lachin
Bruce Barlow
Matt Earl Beesley
Supervising Art Director
Pier Luigi Basile
Script Supervisor
Ceri Evans
Art Direction
David F. Klassen
Post Production Supervisor
Giorgio De Vincenzo
Bruno Cesari
Jane Feinberg
Franco Ceraolo
Costume Design
April Ferry
Set Designer
Maria Teresa Barbasso
Lynda Gordon
Location Manager
Roberto Malerba
Production Coordinator
Gabriella Toro
William Ladd Skinner
Marco Trentini
Production Supervisor
Lucio Trentini
Sound Mixer
Robin Gregory