Tenoch Huerta Mejía is officially joining Avengers: Doomsday as Namor, which will probably carry some huge implications for the MCU. The MCU fandom is still reeling from Marvel Studios’ surprise Avengers: Doomsday announcement, which took place over five and a half hours. It confirmed a gargantuan list of 27 actors appearing in Avengers: Doomsday, stemming from every corner of Marvel’s cinematic history, including the MCU and Fox’s X-Men franchise.