Walt Disney Studios/Eric Charbonneau/WireImage
1 of 11
Ariel from The Little Mermaid
Sure, everyone is rooting for redheads Joanna Garcia-Swisher or Molly Burnett to slip on those fins, but if geek goddess Felicia Day doesn't make an appearance on Once, we'll be shocked. And who better than Day to put a twist on the fiery-haired mermaid who wins over the heart of Prince Eric without ever speaking?