About a mad researcher (Strother Martin) with a penchant for turning his lab assistants into cobras. David: Dirk Benedict. Kristine: Heather Menzies. Dr. Daniels: Richard B. Shull. Kogen: Tim O'Connor. Sheriff: Jack Ging. Kitty: Kathleen King. Steve: Reb Brown. Deputy: Ted Grossman. Bernard L. Kowalski directed.