Ed Harris as Virgil 'Bud' Brigman

Mary Elizabeth Mastrantonio as Lindsey Brigman

Michael Biehn as Lieutenant Hiram Coffey

Leo Burmester as Catton ‘Catfish’ De Vries

Todd Graff as Alan 'Hippy' Carnes

John Bedford Lloyd as Jammer Willis

Kimberly Scott as Lisa 'One Night' Standing

Chris Elliott as Bendix

J.C. Quinn as Arliss 'Sonny' Dawson

Pierce Oliver Brewer, Jr. as Lew Finler

George Robert Klek as Wilhite

Christopher Murphy as Schoenick

Adam Nelson as Ensign Monk

Dick Warlock as Dwight Perry

Jimmie Ray Weeks as Leland McBride

J. Kenneth Campbell as DeMarco

Peter Ratray as Captain

Michael Beach as Barnes

Ken Jenkins as Gerard Kirkhill

Michael Chapman as Dr. Berg

William Wisher as Bill Tyler

Wendy Gordon as Anchorwoman

Paula Cross as Young Woman

Emily Yancy as Woman Reporter

Joe Farago as Anchorman

Marcus K. Mukai as Anchorman #2

Thomas F. Duffy as Construction Worker

Chris Anastasio as Truck Driver

Tom Isbell as Wave Reporter

Mikhail Gorbachev as Self (archive footage) (uncredited)

Frank Lloyd as Navigator