Sarah Michelle Gellar returns to TV January 16, 2011 Buffy is back! Buffy is back! The former slayer Sarah Michelle Gellar is returning to TV for the series Ringer. Gellar will star in the one hour pilot as “a troubled young lass on the run from the mob. She assumes the life of her wealthy twin sister, only to find out that said sibling has a bounty on her head as well.” Supernatural writers Eric Charmelo and Nicole Snyder will write the script.