“Euphoria” returns for its 8-episode second season on Sunday, January 9th — and this first footage looks completely insane. Season 2 regulars include Emmy-winner Zendaya, Hunter Schafer, Nika King, Eric Dane, Angus Cloud, Jacob Elordi, Algee Smith, Sydney Sweeney, Alexa Demie, Barbie Ferreira, Maude Apatow, Javon Walton, Dominic Fike, Storm Reid and Austin Abrams.