Dr. Josette "Jo" Laughlin (born Parker) is a major recurring character in the sixth season of The Vampire Diaries. Jo is the twin sister of Malachai Parker, the older sister of Joey Parker and three deceased unnamed siblings, as well as Olivia Parker and Lucas Parker. She is a doctor at the university hospital and describes herself as a non-practicing witch, as she has relinquished her magic for safe keeping. This process is reversed in Christmas Through Your Eyes when she reactivates her powers after being given incentive by her twin, Malachai. Not being ready to merge with Kai, Luke takes her place and begins the merge. After the merge, Jo sees Kai and Luke unconscious and rushes over to Luke. Jo discovers that Kai won the merge and she cradles Luke's body as she mourns him. Although she loathes Kai for destroying her family, she agrees to help him with his post merge sickness by transferring her magic to him, considering the whole Gemini coven may suffer with his death. It is later discovered that she is pregnant with Alaric's baby and the two immediately get engaged. Jo is a member of the Parker Family, and also a member of the Gemini Coven.