1. Nathaniel Buzolic. The Australian born actor has been acting since 2002, but didn't really get his start until 2012. He appeared as Kol in the thirteenth episode of season three of The Vampire Diaries as Kol Mikaelson, an Original vampire. His last appearance was on the nineteenth episode of the third season of the show. He'll be reappearing in the tenth episode in season four which airs in 2013.