Seán William McLoughlin, better known as Jacksepticeye, is an Irish YouTuber and actor, best known for his vlogs and comedic Let's Play series. As of December 2019, his channel has over 11 billion views and over 23 million subscribers, and is ranked the most-subscribed channel in Ireland.
Imagine if all of the actors in the MCU were suddenly unavailable for 2018's Avengers: Infinity War and the only people in the entertainment industry willing to take their places are YouTubers.
