70. Isla Fischer
When Sacha Baron Cohen isn't dressed up like Borat or Bruno, this is the chick he comes home to, and if she's anything like the nympho she played in Wedding Crashers, Cohen is a lucky lucky man. The laugh out loud inducing Isla had moderate success as an actress, but as far as red heads go these days, she's atop of the food chain. Respek, word to Ali G.
DECADE ACHIEVEMENT: Received a MTV movie award for her breakthrough role in Wedding Crashers.