Seán William McLoughlin (born 7 February 1990), better known as Jacksepticeye, is an Irish YouTuber, best known for his vlogs and comedic Let’s Play series. As of March 2021, his channel has over 13.9 billion views and 26.6 million subscribers, and is the most-subscribed Irish channel. He has participated in fundraisers that have raised millions for charity.