* Alaric Saltzman: He is killed by Connor, a member of the "Hunters" who seek to eliminate vampires. However, Alaric is resurrected later in the season.
* Jenna Sommers: She is killed by Klaus Mikaelson, who is using her as a pawn in his plan to break the curse on his family.
* Connor: He is killed by Elena after he attempts to attack Bonnie.
* Abby Bennett Wilson: She is killed by a werewolf, a tragic loss for Bonnie.
* Niklaus "Klaus" Mikaelson: He is seemingly killed by Elijah, but his fate is left ambiguous.
* Rose: She is killed by a werewolf, heartbroken after being separated from Damon.
* John Gilbert: He is killed by Klaus, sacrificing himself to protect his family.
* Jeremy Gilbert: He is killed by a vampire, a tragic loss for Elena. However, he is later resurrected by Bonnie.
* Kol Mikaelson: He is seemingly killed by Elijah but is later revealed to be alive.
This is just a selection of the deaths in season 3. The show is known for its high death count and many beloved characters were lost. It's also important to remember that there are some other deaths, but they may be less significant to the overall plot of the season.