1 of 12Esther (Isabelle Fuhrman), Orphan
The use of creepy kids is one of the horror/suspense genre's most time-honored clichés, something Esther reminded us of when she terrorized her adoptive mother and brother in this 2009 thriller. All bets were off as soon as she started bashing in a nun's skull with a hammer.
Click ahead to see more of our favorite disturbing big-screen offspring.
Photo By: Warner Bros. Pictures