Jacksepticeye

Seán William McLoughlin (born 7 February 1990), better known by his online pseudonym Jacksepticeye (or simply Jack), is an Irish YouTuber, known primarily for his comedic Let's Play series and vlogs. As of August 2018, his channel has over 9 billion views and over 20 million subscribers, currently ranked the 41st most-subscribed YouTube channel as well as the most-subscribed channel in Ireland.