Mark McConville, better known under his username LS Mark, is a Northern Irish YouTuber better known for his commentary and reviews of popular media. He first became popular as a YouTuber in 2018 after releasing a video on famed "The Fairly OddParents!" and "Danny Phantom" creator Butch Hartman, after which he became a commentator. However, due to the excessive negativity found in the community, McConville abandoned his commentary videos in favor of transitioning to mainly reviews of animated media, movies, and video games. In September 2024, he released the pilot episode for his own animated series, "Catching Up", and created a Kickstarter campaign to fund the second episode, with stretch goals for up to five or six episodes.