31. Melanie Griffith
Worst Performances: The Bonfire of the Vanities (1990), Milk Money (1994)
Melanie Griffith isn't always bad. Actually, in some cases, like 1988's Working Girl and RKO 281 11 years later, she's been damn good. But a few strong performances unfortunately can't totally dismiss a slew of poor ones, and overcooked turns in duds like The Bonfire of the Vanities, Milk Money, and Pacific Heights diminish her career's overall impact.