When Roy was captured by , Thea donned her vigilante mantle to help rescue him. By the time the earthquake started, Thea and Roy were both able to make it out safely. She begins to unravel, holding Slade Wilson at gunpoint on , and viciously turns against Malcolm. While Oliver was on the island, she developed a rebellious attitude and a drug habit, although she began to become clean after criminal charges are brought against her for driving while under the influence. Team Arrow tracked Machin to his foster parents' house, but he rigged a motion sensor gunfire trap. Thea decided to help Nyssa destroy the pits and Roy agreed to join them.
Thea was brought home by the police after a night of drunken partying with her friends that led to breaking and entering a shop. Malcolm then decided to train her the same way he was trained. I've worn it for the last time. He tried to convince Thea to not get involved but she protested and persuaded him to help her instead. Thea didn't want to lose her brother again, having been deeply impacted by his absence.
. When Thea and Laurel returned to Star City, Thea agreed not to tell Oliver about their experience in Nanda Parbat. As a vigilante, she is also able to easily perform parkour, scaling buildings and going from one tall point to the next. Growing up, Thea idolized her older brother. Moira tells Thea that she has flourished the past year, which had a lot to do with Roy, and assured her daughter that her personal life is not going to affect the former's case, bringing Roy and Thea back together.
Personality Thea in her civilian persona. She also utilized these skills as a vigilante, such as determining Cupid's victims using her knowledge of celebrity gossip. After Roy got shot with an arrow, Thea locked herself in her room along with Sin, concerning Moira, who asked Oliver to check on her, upon the finding out the truth Oliver removed the arrow from Roy's leg and warned the three of them, to stay out of trouble. The day after at Verdant, Roy went up to Thea and said that he wanted to break up with her, leaving her shocked and confused. Later, Thea wistfully looked at pictures of her and Roy on her phone as she drank wine.
Oliver and Thea later arrived on Lian Yu. Thea and her family were worried for Oliver after multiple charges were brought against him by Sergeant. She then tracked Roy down at his home in to retrieve her purse. However, after a few months of presumably training to regain her combat skills, as Thea was able to hold her own against and , as well as defeat several assassins of the Thanatos Guild. Oliver asked if she flew from Corto Maltese with Malcolm.
Thea and Malcolm later spoke again at the loft. Embarrassed, she tearfully apologized for making a scene, but Tommy and Laurel assured her it was okay. However, after Thea learned of Roy working with the Arrow, this was the last straw for her and so she went back to Malcolm. During this time she met and began a relationship with. Thea still refused to leave the city, pointing out that Ra's will try to find and kill them anyway. Please be sure to cite in accordance to our. Malcolm called to check up on her and Thea thanked him for taking care of her.
But if the Arrow persona is truly dead and gone, what new identity will Oliver assume upon his return? Oliver convinced Deathstroke to help him defeat Prometheus by giving him information about his son, Joe Wilson. In a last-ditch effort to get her to stay, Oliver reveals having recently learned from Isabel that Robert knew the whole time Thea wasn't his biological daughter, but accepted and loved her anyway. When Diggle wondered how she was doing after her resurrection, Thea assured him she was fine. Thea later tried to convince Oliver not to leave the city, with no luck. Oliver Queen's return Thea was one of the first people to welcome Oliver home with open arms. Thea was placed into a computer-simulated reality where her parents, Tommy and Laurel were all alive, Oliver was getting married to Laurel, and she was the owner of Verdant.
Thea witnessed Moira announcing and went to the Glades to find Roy. Thea continued to keep her distance from her family, even trying to prevent her mother from doing her campaign rally at Verdant, only going through with it since she signed a contract. Thea avoided the subject and proclaimed that Malcolm is one of the few family members she has left. Thea later tried to convince her mother to leave her room and go out with her. After Oliver returned, he and Thea were overjoyed when Moira was found not guilty and acquitted of all charges.