Richard Armour
Mark Lindsay Chapman
Layla
Susan Blakely
Celia Evans
Barbara Townsend
Susan Weiss
Channing Chase
Henry Evans
Glen Vernon
FBI Agent #2
Richard Partlow
FBI Agent #1
Biff Yeager
Patti
Toni Attell
Policeman
James R. Parkes
Man in Coat
Rodger LaRue
Cammie
Stanley Bennett Clay
Greg Collins
Cindy
Lisa Blount
Nervous Lady
Lola Fisher
Nervous Man
Robert Beaulieu
Agent #2
Al Pugliese
Coroner
Martin Clark
Trucker
John Durbin
Agent #1
Jerry Boyd
Female Airline Agent
Helen Anderson
Airline Supervisor
William Jackson
Bum
Gary Burden
Girl
Julie Harris
Alien Leader
Brion James
Agent
Walter G. Zeri
Sid
Earl Boen
Prof. Alan Jeffries
Geoffrey Lewis
Angela Taylor
Catherine Mary Stewart
Elyse Jeffries
Nicole Eggert
Pops
Paul Brinegar
Eddie
Barry Pearl
Director
Michael Chapman
Stunts
Bob Herron
Casting
Donald Paul Pemrick
Set Decoration
Tom Pedigo
Associate Producer
Robin Buxton
Art Direction
Kirk Axtell
Supervising Producer
Alex Beaton
Original Music Composer
Sylvester Levay
Editor
Frank Mazzola
Unit Production Manager
Larry Powell
Bruce A. Taylor
Writer
Executive Producer
Roderick Taylor
Udi Harpaz
Director of Photography
Paul Goldsmith