Joseph Garrett

Joseph Garrett (born 13 December 1990), better known as Stampylonghead, Stampylongnose, Stampy Cat, or simply Stampy, is an English YouTuber known for his Minecraft video game commentaries playing the character of Stampy Cat. He is well-known for his child-friendly demeanour and incorporating storytelling and education into the Let's Play format. In 2014, he was one of the ten most-watched YouTube channels in the world.

Description above from the Wikipedia article Stampy, licensed under CC-BY-SA, full list of contributors on Wikipedia.