To say that Critical Role pushed D&D actual play into the mainstream would be an understatement. When the first campaign launched in 2015, led by Mercer as the DM and with talented voice actors as players such as Laura Bailey and Ashley Johnson, it was met with almost immediate success.

Critical Role announces its Campaign 4 is coming and it will have a new Game Master, Brennan Lee Mulligan, who takes over for Matt Mercer.

Critical Role's chief creative officer and longtime game master, Matthew Mercer, is making a big change at the team's nerdworld business. When the team's fourth campaign kicks off on October 2, it won't be Mercer sitting behind the game master's screen.