Characters played by Charlton Heston
Alan Murdock
Characters played by Karen Black
Nancy Pryor
Characters played by George Kennedy
Joe Patroni
Characters played by Efrem Zimbalist Jr.
Captain Stacy
Characters played by Susan Clark
Helen Patroni
Characters played by Helen Reddy
Sister Ruth
Characters played by Linda Blair
Janice Abbott
Characters played by Dana Andrews
Scott Freeman
Characters played by Roy Thinnes
Urias
Characters played by Sid Caesar
Barney
Characters played by Myrna Loy
Mrs. Devaney
Characters played by Ed Nelson
Major John Alexander
Characters played by Nancy Olson
Mrs. Abbott
Characters played by Larry Storch
Glenn Purcell
Characters played by Martha Scott
Sister Beatrice