by Alanna MarshallBuzzFeedBuzzFeed StaffI'm the SEO Resident here at BuzzFeed, and I cover everything from trending pop culture and celebrity news to evergreen entertainment and lifestyle topics. The third and final season of Euphoria is officially here, and we're already off to a shocking start in the first episode, which aired on HBO on Sunday, April 12. We're seeing the return of the characters played by Zendaya, Jacob Elordi, Sydney Sweeney, and Alexa Demie, as well as the late Eric Dane, who returns as Cal Jacobs.