Peter Weller character Steven Beck
Richard Crenna character Dr. Glen Thompson
Amanda Pays character Elizabeth 'Willie' Williams
Daniel Stern character Buzz 'Sixpack' Parrish
Ernie Hudson character Justin Jones
Michael Carmine character DeJesus
Lisa Eilbacher character Bowman
Héctor Elizondo character Cobb
Meg Foster character Martin
Eugene Lipinski character Russian Ship Captain
Larry Dolgin character Helicopter Pilot
Pascal Druant character Winch Operator
Steve Pelot character Winch Operator
Tom Woodruff Jr. character Lead Creature (uncredited)
