A small town doctor mistakenly ingests an experimental drug made from the blood of vampire bats which transforms the kindly medic into a bloodthirsty monster.
John Beal
Dr. Paul Beecher
Coleen Gray
Carol Butler
Kenneth Tobey
Buck Donnelly
Lydia Reed
Betsy Beecher
Dabbs Greer
Dr. Will Beaumont
Herb Vigran
Sgt. George Ryan
Paul Brinegar
Willy Warner
Ann Staunton
Marion Wilkins
