Caroline Forbes had one of the greatest character evolutions in the entire Vampire Diaries series or any of its spin-off shows. She may even have one of the best developments in the history of the CW, on par with the likes of Gossip Girl's Chuck Bass, Gilmore Girls' Jess Mariano, or Hart Of Dixie's Zoe Hart. Caroline went from a shallow, insufferable teen to a strong, thoughtful vampire during The Vampire Diaries' eight seasons, and she did it in a way that was natural and compelling. Caroline was definitely the most-underrated series lead (because everyone already knows that Bonnie Bennett deserved better), and her ability to have chemistry with the most intense bad boys in the franchise made for some great television.