Mark Fischbach, better known by his online alias "Markiplier," is a YouTube gaming Star. His channel has over 23 million subscribers and over 10.7 billion total video views as of March 2019.

Mark is known for his various play-throughs of video games in the horror genre, such as "Five Nights at Freddy's," "The Evil Within," and "Slender." However, he does focus on indie games of varying genres for the purposes of giving them more attention. He also does game plays outside of the horror genre, such as: "Minecraft" (seen in his long-running series, "Drunk Minecraft") and "Happy Wheels." He collaborates with his good friends Bob Muyskens (Muyskerm) and Wade Barnes (LordMinion777)).

During the course of his channel's run, Mark has also released several sketch comedy videos (one of which his trademark alter ego, Wilford Warfstache, was born from), commonly collaborating with fellow sketch comedian Cyndago. He formerly resided in Cincinnati before moving to Los Angeles in early 2014.

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