Briana Evigan. An old roleplay buddy used to have her as her Sophia Bush’s younger sister, and I always thought it was a perfect fit. Another possibility is Sharni Vinson, though she resembles Briana more than Sophia. For brothers, perhaps Jared Padalecki, or Cory Monteith. For parents, one of my friends just suggested “Monica Bellucci and someone with a pointy face.” I can agree with Monica Bellucci, but I can’t quite come up with any pointy-faced men. I hope some of these are useful to you!
Any more suggestions for Anonymous?