Taylor Jacks Kinney (born July 15, 1981  ) is an American actor and model. He is known for playing Mason Lockwood in The Vampire Diaries , Jared in Zero Dark Thirty , and Lieutenant Kelly Severide in Chicago Fire , Chicago P.D. and Chicago Med .
Taylor and Gaga ended their engagement last year after dating for over five years. Gaga has been dating talent agent Christian Carino since early this year.