Joseph Morgan is an English actor. He is known for playing Niklaus "Klaus" Mikaelson on The CW's The Vampire Diaries and its spinoff The Originals in which he is the lead. He has portrayed CJack60/Elliot in the Peacock series Brave New World, and Brother Blood in the HBO Max series Titans. He currently stars as James Ackerson in the Paramount+ series Halo (2024).

The Vampire Diaries is an American supernatural teen drama television series developed by Kevin Williamson and Julie Plec, based on the book series of the same name written by L. J. Smith. The series premiered on The CW on September 10, 2009, and concluded on March 10, 2017, having aired 171 episodes over eight seasons.