Ed Harris
Virgil 'Bud' Brigman
Mary Elizabeth Mastrantonio
Lindsey Brigman
Michael Biehn
Lieutenant Hiram Coffey
Leo Burmester
Catton ‘Catfish’ De Vries
Todd Graff
Alan 'Hippy' Carnes
John Bedford Lloyd
Jammer Willis
Kimberly Scott
Lisa 'One Night' Standing
Chris Elliott
Bendix
J. C. Quinn
Arliss 'Sonny' Dawson
Pierce Oliver Brewer, Jr.
Lew Finler
George Robert Klek
Wilhite
Christopher Murphy
Schoenick
Adam Nelson
Ensign Monk
Dick Warlock
Dwight Perry
Jimmie Ray Weeks
Leland McBride
J. Kenneth Campbell
DeMarco
Peter Ratray
Captain
Michael Beach
Barnes
Ken Jenkins
Gerard Kirkhill
Michael Chapman
Dr. Berg
William Wisher
Bill Tyler
Wendy Gordon
Anchorwoman
Paula Cross
Young Woman
Emily Yancy
Woman Reporter
Joe Farago
Anchorman
Marcus K. Mukai
Anchorman #2
Thomas F. Duffy
Construction Worker
Chris Anastasio
Truck Driver
Tom Isbell
Wave Reporter
Mikhail Gorbachev
Self (archive footage) (uncredited)
Frank Lloyd
Navigator