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.

Dimension 20 alum Brennan Lee Mulligan replaces Critical Role's Matthew Mercer for the campaign this October ...

Dropout's "Dimension 20" star Brennan Lee Mulligan joins Critical Role as the game master for next season, Campaign 4.

Critical Role's long-awaited fourth campaign kicks off on October 2. One big change is that CR's chief creative officer, Matt Mercer, will not be the game master. Mercer is handing over control of ...