10 Hot, Young Actors With Fall 2012 Pilots (PHOTOS)

Last big role: Mason Lockwood on The Vampire Diaries (2010-2011)

New pilot: Chicago Fire (NBC)
In a nutshell: A drama exploring the complex and heroic men and women of the Chicago Fire Department
Taylor’s role: Adrenaline-junkie squad lieutenant Kelly Severide

Hot factor: Lady Gaga’s man has an eight-pack. That is all you need to know.