Markiplier

Markiplier is a good Youtuber who does Let's Plays. He appears in Curiousgorge66's Macusoper grounded series.

What is known about him in grounded videos
Markiplier has the ability to turn stuff back to normal and he gets calls from Curiousgorge66 or his friends from the Nickelodeon Fanon Wiki, or even Macusoper's Dad. He punishes Macusoper for what he did, and Markiplier can turn troublemakers into babies (and even used it on Macusoper with Billy Wagner, the latter which turned Macusoper into a Popple).