Bob Clymire. Bob Clymire was >> in Teenagers Battle the Thing as 'Johnny'.Bill Simonsen. Bill Simonsen was >> in Teenagers Battle the Thing as 'Dr. Bill Wyman'.Jan Swihart. Jan Swihart was >> in Teenagers Battle the Thing as 'Sharon'.Dennis Kottmeier. Dennis Kottmeier was >> in Teenagers Battle the Thing as 'Bob'.Ruth Ann Mannella. Ruth Ann Mannella was >> in Teenagers Battle the Thing as 'Linda'.Ken Koepfer. Ken Koepfer was >> in Teenagers Battle the Thing as 'Norman'.Mary Brownless. Mary Brownless was >> in Teenagers Battle the Thing as 'Woman Victim'.Dave Flocker. Dave Flocker was >> in Teenagers Battle the Thing as 'Roger Mason (uncredited)'.Dave Flocker. Dave Flocker was >> in Teenagers Battle the Thing as 'Director, Producer'James T. Flocker. James T. Flocker was >> in Teenagers Battle the Thing as 'Story'