Preview: Rosanna Arquette Guest-stars on Medium
The last time they performed together was as kids in their parents' living room, but Patricia and Rosanna Arquette will finally reprise their act on the April 7 episode of Medium (Monday at 10 pm/ET, NBC) — albeit their roles are slightly different this time. Rosanna guest-stars as a femme fatale in a murder case Patricia's visionary Allison DuBois character is investigating. "This episode is about this black-widow woman who's seducing men and killing them," reveals Patricia, who has been trying to convince her older sister to appear on Medium for four years. "It's fun because our killers aren't usually women." Says Rosanna, "When [executive producer] Glenn Caron called, I was like, 'Ooh, I'd like to be a killer! A lady ki
