Ed Nelson
Dr. Paul Kettering
Joanna Lee
Alice Summers
Cornelius Keefe
Senator Walter K. Powers
Alan Jay Factor
Glenn Cameron
Jody Fair
Elaine Cameron
David Hughes
Dr. Wyler
Robert Ball
Dan Walker
Phil Posner
Sheriff
Orville Sherman
Mayor Cameron
Henry Randolph
Telegrapher
Hampton Fancher
Zombie (uncredited)
Leonard Nimoy
Professor Cole
Doug Banks
Doctor
Saul Bronson
Prof. Helsingman