Catch Mark Christopher Lawrence on GLEE Tonight! Posted by: Mel on November 15, 2012 in Uncategorized 6 Comments If you’re new here, you may want to subscribe to our RSS feed and follow us on Twitter. Thanks for visiting! Head’s up, Chucksters! Mark Christopher Lawrence alerted us that he’s guest starring in tonight’s episode of Glee, airing at 8/7c on FOX. No word on his role, so keep your eyes peeled!