LOS ANGELES (Variety.com) - Charisma Carpenter has landed a guest role in an episode of "Sons of Anarchy's" final season, Variety has confirmed. Carpenter, a vet of "Buffy the Vampire Slayer" and "Angel" will play Carol, a conservative administrative director at a medical facility. Further details on her character are being kept secret. "Sons of Anarchy" airs at 10 p.m. on Tuesdays on FX. EW first broke the news.