Reparto
Arthur Hill
Dr. Jeremy Stone
David Wayne
Dr. Charles Dutton
James Olson
Dr. Mark Hall
Kate Reid
Dr. Ruth Leavitt
Paula Kelly
Karen Anson
George Mitchell
Jackson
Ramon Bieri
Major Manchek
Peter Hobbs
General Sparks
Richard O'Brien
Grimes
Eric Christmas
Senator from Vermont
Peter Helm
Sgt. Crane (Piedmont team)
Carl Reindel
Lt. Comroe
Ken Swofford
Toby (technician)
Frances Reid
Clara Dutton
Richard Bull
Air Force Major
John Carter
MP Capt. Morton
Glenn Langan
Cabinet Secretary (uncredited)
Susan Brown
Allison Stone (uncredited)
Walter Brooke
Assistant to Cabinet Secretary (uncredited)
Jan Burrell
Mother - Piedmont (uncredited)
Michael Crichton
Bearded Surgeon (uncredited)
David McLean
Sen. McKenzie (uncredited)
Emory Parnell
Pete 'Old Doughboy' Arnold (uncredited)
Michael Pataki
Operator of 'The Hand' (uncredited)
Quinn K. Redeker
Capt. Morris (uncredited)
Garry Walberg
Technician (uncredited)
Ivor Barry
Murray (uncredited)
Lance Fuller
Man (uncredited)
Don Messick
Alarm (voice) (uncredited)
Lisa Daniels
Woman (uncredited)
Walker Edmiston
Voice (voice) (uncredited)
Sandra Ego
Girl (uncredited)
Victoria Paige Meyerink
(uncredited)
Midori
Bess - Lab Technician (uncredited)
Lorna Thayer
Woman (uncredited)
