5. Sisters (1973)
This Hitchcockian thriller was directed by Brian DePalma and starred pre-Superman Margo Kidder, who played the roles of both sisters, Danielle and Dominique. This set of twins in Sisters are different from the previous ones on this list because only one of them is actually creepy. Anyone who gets close to Dominique’s sister gets the sharp end of her knife. You see, she’s angry at being separated from her sister and if she can’t have her, no one will. Of course, there are other things that differentiate these twins from the others, but since this is a spoiler free review, I’ll keep my mouth shut. By the way, there was a remake in 2006 starring Chloe Sevigny and Stephen Rea.