Michael Biehn as Anthony Fraser

Alex McArthur as Charlie Reece

Nicholas Campbell as Albert Morse

Deborah Van Valkenburgh as Kate Fraser

John Harkins as Dr. Keddie

Art LaFleur as Mel Sanderson

Billy Green Bush as Judge McKinsey

Royce D. Applegate as Gene Tippetts

Grace Zabriskie as Naomi Reece

Carlos Palomino as Nestode

Donald Hotton as Dr. Leon Gables

Andy Romano as Spencer Whalen

Patrick Cronin as Harry Bellenger

Roger Nolan as Dr. Roy Blair

Roy London as Dr. Paul Rudin

Rosalyn Marshall as Sally Ann

Whit Hertford as Andrew Tippetts

David A. Kimball as Doctor in Flashbacks

Brenda Lilly as Eileen Tippetts

Joseph Whipp as Dr. George Mahon

Chip Heller as Guard #1

Rodney Cornelius as Guard #2

Dave Alan Johnson as Del Cameron

Roger Broyles as Joe Kaufman

Edith Fields as Rose Gurgin

Neal Hahn as Mr. Hendrickson

Gale Beeman as Mrs. Hendrickson

Marni Webb as Mrs. Ellis

Paul Gaddoni as Aaron Tippetts

Bernard Zanck as Priest

Noreen Farley as Waitress

Peter McKernan Jr. as Co-Pilot