8. Sophia Bush
Hometown: Pasadena, California
Role: Ali in Partners (CBS; Mondays at 8:30/7:30 Central)
Bush reigned for nine years on One Tree Hill (yeah, we can’t believe that show lasted that long either)—and now she's back. Her new show is about two dudes (one gay, one straight) and what happens when relationships get in the way of their budding bromance. Bush plays Ali, the business-savvy fiancee of one of the bros, Joe (played by David Krumholtz from Numbers).