PewDiePie

Felix Arvid Ulf Kjellberg, more commonly known by his nickname PewDiePie, is a Swedish YouTuber who is famous for his various "Let's Plays", which are often horror games, often with extremely over-the-top reactions. PewDiePie has two dogs named Maya and Edgar, and currently resides in England with his girlfriend, Marzia, who has her own YouTube channel, CutiePieMarzia. He is most known for playing Amnesia, Happy Wheels, and Slender; making YouTube videos is PewDiePie's current occupation and hobby. He currently has gained over 9 billion views and 37 million subscribers, making him not only the most subscribed YouTube channel related to video games, but the most subscribed YouTuber of all time as of August 16, 2013 when he passed Smosh. He refers to his fans as his "bros" and ends each of his videos with a "brofist". PewDiePie made a cameo appearance as Mikhail Baryshnikov in Rasputin vs Stalin.

Season 2:

 * Mikhail Baryshnikov (cameo)

Trivia

 * He, Jenna Marbles and Smosh are the only YouTubers to have appeared in a rap battle who have more subscribers than ERB itself.
 * He is the only one who didn't rap, but only appeared as a cameo.
 * PewDiePie and Smosh both appeared in season finales while Jenna Marbles appeared in a mid-season premiere.