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