Someone started a list on Ranker.com of the Hottest Redheaded Actresses. It can be fake or real, and they don't even have to be redheads currently. As long as they've been red at some point. 

Here are the Top 10:

  1. Emma Stone
  2. Isla Fisher 
  3. Amy Adams
  4. Christina Hendricks
  5. Alyson Hannigan
  6. Kate Mara
  7. Karen Gillan (Guardians of the Galaxy movies)
  8. Julianne Moore
  9. Nicole Kidman
  10. Jessica Chastain