Tyler Lockwood

Tyler Lockwood was a former main character, protagonist, current werewolf and a former hybrid on The Vampire Diaries, who played for the football team at Mystic Falls High School. Tyler was also an antagonist/anti villain of the episode Bloodletting of The Originals, where Tyler carried out his vendetta against the infamous Klaus Mikaelson. 
He was the son of Richard and Carol Lockwood, and the nephew of Mason Lockwood who was also a werewolf. He was initially portrayed to be arrogant, selfish and a bully. But after triggering the family curse which turned him into a werewolf, he has learned to tone his behavior down. Before this revelation, he was referred to many times as a "dick," by both his best friends; Matt Donovan and Jeremy Gilbert. He was shown to have an athletic build, and great strength as a human. He also had a short temper and became angry very easily. He didn't understand why he behaved the way he did, at least until Mason came to visit after Richard Lockwood's death. 
Initially after becoming a hybrid, he was extremely grateful to Klaus for taking away his pain of turning every month. However, he soon becomes angered at the prospect of being sired to him after he bites his girlfriend, Caroline Forbes. He manages to break the sire bond and continued to help other hybrids break the curse of being sired. This came at a price once Klaus found out about his actions, as Klaus murdered his mother and last remaining family member. Since then, he swore revenge on Klaus for his actions.
He had an on-and-off relationship with Vicki Donovan until her death and after he triggered his werewolf curse, starts to fall for Caroline after she helps him on a Full Moon, despite her relationship with his best friend, Matt, at the time. His relationship with Caroline has gone through the rocks over the series yet it fell apart after he chose to avenge his mother in favor of staying in college and being with her.
After a failed attempt to kill Klaus and Hayley's child, he was imprisoned in the Garden until released by Rebekah as a "parting gift" to Matt and in 500 Years of Solitude returns to Mystic Falls. He later grew suspicious about the relationship between Nadia Petrova and Matt, leading to the discovery that Katherine was, in fact, inhabiting Elena's body without anybody realizing.
In Man on Fire, Tyler became possessed by Julian, a Traveler, in the same manner as Matt and Elena were possessed by Gregor and Katherine, respectively. His control over his own later resurfaces without the Travelers realizing, allowing Tyler to uncover what they were planning: the eradication of spirit magic and everything that witches ever created through it. He ultimately escaped and quickly relayed what he learned to his friends. After the Travelers used the Body Sealing Spell on Tyler, Julian got permanent control of Tyler's body and due to Markosdestroying the Traveler's Knife that was needed to remove Passengers, Julian could not be banished. Later, Julian was captured by the Travelers and they brought Julian to Mystic Falls, where they had cast the Magic Purification Spell, which can undo any non-traditional magic, including the magic that created vampirism. As a result, when Julian was forced to enter Mystic Falls in Tyler's body, Tyler's vampirism and activated lycanthropy were both stripped away before Tyler and Julian both died, as vampirism was what was keeping them alive.
Tyler, ended up on the Other Side, but thanks to Bonnie's sacrifice and Liv's magic, he was able to be resurrected and rejoin his loved ones in the living world in Home. Shortly after he returned, he discovered that he was no longer a hybrid due to the Travelers'  Magic Purification Spell. At the beginning of the sixth season, Tyler was seen struggling to control his renewed anger issues due to his return to being a human with a werewolf gene, and desperately wanted to prevent himself from triggering his curse once again. He ultimately reactivated his curse, despite his best efforts to avoid it, when an already-dying Liv begged him to kill her and save himself; Tyler done as asked and mercy-killed her to re-trigger his werewolf curse which saved his life in I'm Thinking Of You All The While. While he was saying his goodbyes to Elena, she encouraged him to leave Mystic Falls and do whatever it is that he wants to do, insisting that he embrace his lycanthropy and let it be what makes him extraordinary. So Tyler left town, and became a member of The Armory, until Damon killed him for good in You Decided That I Was Worth Saving.
Tyler was the last member of the Lockwood Family and the Apisi Werewolf Bloodline.