But now she thinks it's time to stash away the stakes and pursue other acting roles.
Her decision comes following her success in the recent Scooby Doo movie.
It's thought the next slayer in Sunnydale, could be Buffy's younger sister, Dawn, who's played by Michelle Trachtenberg.
But don't panic Buffy fans, it's very likely the high-kicking star will still be popping back to Sunnydale to visit her sis.