: Klaus returns to Mystic Falls to protect Tyler from Connor, revealing that he knows more about the mysterious hunter than he is letting on.
Experiences "vampire rage" for the first time and begins to question if Stefan's way is sustainable. [S4E3] The Rager
Makes her first appearance, arriving in town as a werewolf friend from Tyler's past, immediately causing tension between Tyler and Caroline. "I'm not a hunter. I'm the hunter." — Connor Jordan : Klaus returns to Mystic Falls to protect
Discovers his potential as a "Potential Hunter" because he is the only one who can see Connor’s invisible tattoo. [S4E3] The Rager
"You're a vampire now, Elena. You're gonna have to learn to live with it. It’s who you are." —