27. GLENN CLOSE
Reversal of Fortune (1990)

Hollywood's most dependable dramatic actress in the 1980s, Close got five Oscar nominations in six years — none of them, remarkably, for playing the destructive Sunny von Bulow. Jeremy Irons may have won Best Actor as slimeball playboy Claus, but watch again to see how much he owes his award to his costar. Her ambiguous Sunny — a fantastic, from-deep-inside take on alcoholic old money — is someone we could easily see him wanting or trying to kill. Or not.