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Yes, Critical Role star Sam Riegel is definitely planning some special t-shirt trolling for new GM Brennan Lee Mulligan
Sam Riegel already has some t-shirts made to troll new Critical Role GM Brennan Lee Mulligan, but he's open for Critters to help make more

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It’s a question that many Critical Role fans have had since the announcement of Brennan Lee Mulligan as GM for campaign 4 of the show — and at Rose City Comic Con 2025, one brave Critter finally asked out loud: is Sam Riegel planning any special BLM t-shirts for the new season of the show?
For those seeking some context: Riegel has made it an unexpected tradition to wear t-shirts on the show featuring either his own face, or the face of GM Matt Mercer. Why? Well, that’s a question you’d have to ask him, but I suspect the answer may have something to do with a desire to be a chaos goblin and keep Matt humble. Here, take a look at some of the shirts for yourself:
Of course, Mercer isn’t the GM of the next campaign, which led one Critter to ask Reigel at Rose City Comic Con 2025, “Sam, have you hunted down old pictures of Brennan?”
“I have three t-shirts already,” Reigel revealed, “but if you guys have other crappy pictures of them, you can go on the Beacon Discord… on the Beacon Discord, there’s a whole channel where people send me pictures of Matt. So maybe you can send me some awful Bennan pictures.”
“You’re crowdsourcing your trolling?” asked Liam O’Brien, incredulously.
“It’s a hive mind!” protested Riegel. As to when fans can expect to see the three shirts that already exist… “I don’t know what we can say about campaign 4 or not, but… it’s not going to be episode one, guys.”
Critical Role campaign 4 begins October 2.
With two animated series on Prime Video, Campaign 4 in full swing, and so much more Exandrian lore to come, Critical Role is showing no signs of slowing down. That's why the adventuring party at Popverse are here to bring you everything we can from those nerdy-ass voice actors & Bo., including:
- How to watch Critical Role in order
- Travis Willingham on the differences between The Legend of Vox Machina and The Mighty Nein
- Taliesin Jaffe on playing Mollymauk Tealeaf for Campaign 2 vs. playing him for Prime Video
- Matt Mercer's homebrew warrior class (created originally for Vin Diesel)
...and much, much more. Roll initiative, player. Magic awaits.
About Rose City Comic Con 2025
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