Characters played by George C. Scott
John Russell
Characters played by Trish Van Devere
Claire Norman
Characters played by Melvyn Douglas
Senator Carmichael
Characters played by Jean Marsh
Joanna Russell
Characters played by John Colicos
Captain DeWitt
Characters played by Barry Morse
Parapsychologist
Characters played by Madeleine Sherwood
Mrs. Norman
Characters played by Helen Burns
Leah Harmon
Characters played by Frances Hyland
Mrs. Grey
Characters played by Ruth Springford
Minnie Huxley
Characters played by Eric Christmas
Albert Harmon
Characters played by Roberta Maxwell
Eva Lingstrom
Characters played by Bernard Behrens
Robert Lingstrom
Characters played by James B. Douglas
Eugene Carmichael
Characters played by J. Kenneth Campbell
Security Guard
Characters played by Chris Gampel
Mr. Tuttle
Characters played by Voldi Way
Joseph Carmichael
Characters played by Michelle Martin
Kathy Russell
Characters played by Janne Mortil
Linda Grey
Characters played by Terence Kelly
Sergeant Durban
Characters played by Robert Monroe
Archives Clerk
Characters played by Hagan Beggs
Coroner
Characters played by Anna Hagan
Secretary
Characters played by Antonia Rey
Estancia
Characters played by Sammy Smith
Doorman
Characters played by Paul Rothery
Tony Grey
Characters played by Bruce MacLeod
Security Guard
Characters played by Fred Latremouille
Airport Guard
Characters played by David Peevers
Microfilm Clerk
Characters played by Sera Johnstone
Sara Lingstrom
Characters played by Adam Earle
Adam Lingstrom
Characters played by Carl Boychuk
Music Student
Characters played by Bryan King
Music Student
Characters played by Susan Round
Music Student
Characters played by Nicki Steida
Music Student
Characters played by Randolph Blankinship
Pilot
Characters played by Travis Major
Pilot
Characters played by Giancarlo Esposito
Extra
Characters played by Wayne McLaughlin
Orchestra Member
Characters played by Erick Vinther
Young Man
Characters played by Gary Zahnow
Bank teller
Characters played by Louis Zorich
Stewart Adler