YMMV / Fear City

• Common Knowledge: Many sources online claim Neil Clifford (of Class of 1984 fame) played The Killer, uncredited. However, the role was actually played by John Foster, who is listed in the end credits as 'Pazzo'. A lot of the confusion arises from the fact that the killer is never actually named on-screen, leading many people to assume that Pazzo is a separate character. It doesn't help that Foster bears an uncanny resemblance to Clifford, and also never acted before or since.
• Complete Monster: The unnamed Serial Killer—named "Pazzo" according to the ending credits—is a martial arts expert who embarks on a one-man crusade to murder the sex workers of New York City. Stalking and ambushing these women, the killer deliberately extends their suffering, such as cutting off one girl's fingers instead of killing her, or slashing another victim in strategic places to avoid her bleeding out right away. The killer documents his grisly crimes in a diary titled "Fear City", salivating in his own cruelty and boasting of ridding the world of its "useless whores". He also beats one girl's boyfriend into a coma when he tries to protect her, and is only stopped from continuing his rampage by finally meeting someone tougher than he is.