Richard Dreyfuss
Roy Neary
François Truffaut
Claude Lacombe
Teri Garr
Ronnie Neary
Melinda Dillon
Jillian Guiler
Bob Balaban
David Laughlin
J. Patrick McNamara
Project Leader
Warren J. Kemmerling
Wild Bill
Roberts Blossom
Farmer
Phil Dodds
ARP Musician
Cary Guffey
Barry Guiler
Shawn Bishop
Brad Neary
Adrienne Campbell
Sylvia Neary
Justin Dreyfuss
Toby Neary
Lance Henriksen
Robert
Merrill Connally
Team Leader
Amy Douglass
Implantee
Gene Dynarski
Ike
Carl Weathers
Military Policeman
Norman Bartold
Norman Bartold
F.J. O'Neil
ARP Project Member
Hal Barwood
Returnee #2 Flt. 19
Matthew Robbins
Returnee #3 Flt. 19
Gene Rader
Hawker
Daniel Nunez
Federale
Chuy Franco
Federale
Luis Contreras
Federale
Galen Thompson
Special Forces
John Dennis Johnston
Special Forces
Robert Broyles
Dirty Tricks #3
George DiCenzo
Major Benchley
Alexander Lockwood
Implantee
Josef Sommer
Larry Butler
Bill Thurman
Air Traffic
James Keane
Radio Telescope Team
Philip Dodds
Jean Claude
Mary Gafrey
Mrs. Harris
Michael J. Dyer
Himself
Roger Ernest
Highway Patrolman
Randy Hermann
Returnee #1 Flt. 19
David Anderson
Air Traffic Controller
Richard L. Hawkins
Air Traffic Controller
Craig Shreeve
Air Traffic
Roy E. Richards
Air East Pilot
Eumenio Blanco
Federale
Dennis McMullen
Radio Telescope Team
Cy Young
Radio Telescope Team
Tom Howard
Radio Telescope Team
Richard Stuart
Truck Dispatcher
Bob Westmoreland
Load Dispatcher
Matt Emery
Support Leader
John Ewing
Dirty Tricks #1
Kirk Raymond
Dirty Tricks #4
Keith Atkinson
Dirty Tricks #2
Monty Jordan
Special Forces Commander / Helicopter Pilot (uncredited)
Basil Hoffman
Longly (uncredited)
Stephen Powers
UN Observer (uncredited)
J. Allen Hynek
Man Smoking Pipe at Landing Site (uncredited)
Howard K. Smith
Howard K. Smith (uncredited)
