The deranged and mentally unstable mother of Jason Voorhees, Pamela Voorhees is revealed to be the brutal killer of Camp Crystal Lake at the very end of the first ‘Friday the 13th’ film. When her son drowns due to the neglect of the camp councillors, Pamela slips into an insanity that leads her to those at the camp engaging in drinking or fornicating. Her insanity and the shocking revelation as being the vicious murderer throughout the film really marks her out as being one of the most frightening killers ever seen on the big screen.
Pamela Voorhees (Friday the 13th) (7/7)
Submitted to "The Best Horror Bad Guys Of The 1980s"