2 Snow Whites in The Tenth Kingdom???

I was reading the cast list for T10K, and according to the credits it would seem that Snow White is portrayed by 2 different actresses- Camryn Manheim, of course, and also an actress by the name of Emma Willis. I'm puzzled by this. I've always thought that Snow White, as viewed through her icy tomb, bared only a slight resemblance to Camryn and may very well have been another actress entirely, or even a body double or stand-in; also, she appears much more slender and is wearing a red ribbon in her hair as opposed to the silver one we see her wearing moments later when she appears to Virgina as a spirit. My curiosity would have been settled on this matter once and for all, but the features of corpse Snow White don't quite match up with Emma Willis's (whom happens to be a very lovely lady, for what it's worth). Does anyone have any answers for this, or would just like to join in on the speculation???