Karen Smith doesn't come off as the sharpest tool in the "Mean Girls" shed, but that doesn't make her any less hilarious. Amanda Seyfried's now-iconic ditzy blonde won us over with her unique ...

a 14-year-old girl will come up to you every day and quote you as if [Mean Girls] just came out the day before,” he told the actress, who played high school queen bee Karen Smith in the film.