67. Lina Lamont
played by Jean Hagen in Singin’ in the Rain
Some characters may only have one note but when it’s a high-pitched, hilarious note like Lina Lamont’s, it’s all you need. She storms through her scenes like a pixie bulldozer, typifying everything that can be lampooned in a Hollywood actress. She’s vain, clueless and most of all, irresistible (she told me so herself).