Rachel McAdams has enjoyed a long career and appeared in Oscar-winning films (hey, Spotlight), but she will be forever remembered for one of her first roles: Regina George in Mean Girls. And, who could forget:Now, more than a decade later, Regina George is still iconic and still following Rachel around. Or, as she puts it, haunting her. 'Does Regina George haunt me every day? She does have that quality,' she admitted in a new interview with the New York Times.