Transformation

Everyone knows Kate Walsh has been playing a doctor on Grey's Anatomy and Private Practice, but most people don't know that she has also been playing a redhead. "My natural color is a mousy ash-brown," she joked with InStyle. "It's really hot!" Whether she's vibrant ginger or deep auburn, the actress believes there's a reason why she looks so natural in fiery shades: "My grandmother's hair was chestnut, about [my current] shade, and my brother is naturally strawberry blond, so I guess it must run in my blood." She's certainly doing her family proud!

The high school junior wore her thick, glossy hair in bouncy layers.