Tyler Lockwood is played by Michael Trevino on The Vampire Diaries.
Tyler is Vicki Donovan's ex-boyfriend. He didn't treat her well, and he seems to feel bad about it, especially since he can never make it up to her now that she's dead. He has a rivalry with Jeremy Gilbert because of Vicki. He was friends with Matt Donovan, but it wasn't a close friendship and now Matt hates Tyler. His dad is the mayor of Mystic Falls and he plays for the school football team.
At a party, he meets Matt's mother, Kelly Donovan, and they start talking and making out. When Matt sees, he's furious and Matt and Tyler get into a fist-fight. His father's also very angry and tells him he'll never disgrace his family again.
His Werewolf eyes are first seen in the Season One finale Founder's Day. He was driving with Matt, taking Caroline home. When the strange device that hurts vampires is activated he starts to pass out like the vampires, but his eyes turn yellow. He crashes the car injuring Caroline.
Tyler's birthday is March 28th.