Jeff Bridges as Jack F. Prescott

Jessica Lange as Dwan

Charles Grodin as Fred S. Wilson

John Randolph as Captain Ross

René Auberjonois as Roy Bagley

Julius Harris as Boan

Jack O'Halloran as Joe Perko

Ed Lauter as Carnahan

John Agar as City Official

Jorge Moreno as Garcia

Mario Gallo as Timmons

John Lone as Chinese Cook

Garry Walberg as Army General

Keny Long as Ape Masked Man

Sid Conrad as Petrox Chairman

George S. Whiteman as Army Helicopter Pilot

Wayne Heffley as Air Force General

Todd Baker as Shea Stadium Spectator

Corbin Bernsen as Reporter

Ray Buktenica as Naval Officer

Larry M. Byrd as Excited Fan

Peter Cullen as King Kong (voice)

S.C. Dacy as Newspaper Photographer

James Dunaway as Man in Audience

Ned Gill as Crushed Spectator

Donald F. Glut as Guy in Ampitheater

Walt Gorney as Subway Driver

Shawn McAllister as Police Sergeant

Eve McVeagh as Reporter

Larry Naschel as Victim

Ira S. Rosenstein as Logan

David Roya as Ship's Radio Operator

David Ulmer as Man Running in Terror

Kristephan Warren-Stevens as Kid with Afro on Bleachers

Brent Huff as Extra

Rick Baker as King Kong

Dennis Fimple as Sunfish

Harrison Ressler as Photographer (uncredited)