Characters played by Stephen Collins
Pete Casimir
Characters played by Larry Gates
President Doby
Characters played by Christine Lahti
Dr. Louise Casimir
Characters played by Jason Miller
Dr. Tom Henderson
Characters played by Nehemiah Persoff
Prof. Leo Tedeschi
Characters played by Josef Sommer
Dr. Martin Grossman
Characters played by David Spielberg
Mayor Frank Bellona
Characters played by Peter Evans
Harold
Characters played by Kenneth Kimmins
Dr. Lewis Halloran
Characters played by Mark Hulcher
Boy
Characters played by Andrew Early
Youth
Characters played by Glenn E. Crane
Professor
Characters played by Lalla Rolfe
Woman
Characters played by David Kilgore
Nelson Chase
Characters played by Cherie Scheer
Lolliopop girl #1
Characters played by Deborah Nunamaker
Lollipop girl #2
Characters played by Anne Goodwin
Irene Forster Dodd
Characters played by Steve Boschen
Student
Characters played by Carl Lester
Waiter
Characters played by Beatrice Bush
TV reporter
Characters played by Kathy Sweeney
Child of grace
Characters played by Paul K. Ward
Teen