Top Cast
John Lithgow
John Mathewson
Christopher Collet
Paul Stephens
Cynthia Nixon
Jenny Anderman
Jill Eikenberry
Elizabeth Stephens
John Mahoney
Lt. Col. Conroy
Richard Jenkins
Radiation Controls Officer
Sully Boyar
Night Guard
Timothy Carhart
Relief Guard
Gregg Edelman
Science Teacher
JD Cullum
Eccles (as John David Cullum)
