The Originals

Nathan Parsons who plays the werewolf Jackson, left the show during season one to play a vampire on HBO's True Blood (2008) only to return to his werewolf character in season two after the series ending of "True Blood".

Julie Plec initially intended to kill off Josh at the end of season 1, but the writers threatened to never forgive her if she did so.

Nathaniel Buzolic, the actor portraying the role of Kol Mikealson, auditioned and was almost cast as Stefan Salvatore in Crónicas vampíricas (2009).