Emmy Rossum Emmy Rossum

When Shameless returns to Showtime on Jan. 12, not only has Fiona (Emmy Rossum) settled in to her full-time sales job, but she's also now dating her boss, Mike. "Life is looking normal for her," says executive producer Nancy Pimental.

But things won't stay settled for long. "Then we introduce Mike's brother," Pimental says. "He's a bad boy, the black sheep of the family. He really gets under Fiona's skin. Before you know it, she's hooking up with him."

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