Notable TV roles: Fiona Gallagher, Shameless (Showtime)
Shameless doesn’t know whether it’s a drama with ample moments of levity, or a comedy that can get very dark. The show’s lone Emmy nomination (for guest star Joan Cusack) went drama, and so will we. It can be funny, sure, but it can also be crushing. Holding down both tones is the talented Emmy Rossum, often the straight woman to her family’s buffoonish antics, often the anchor in the show’s heaviest moments. William H. Macy is the show’s big name, but on the low, she’s the real star.