Critical Role is an American web series in which a group of professional voice actors play Dungeons & Dragons. The show started streaming partway through the cast's first campaign in March 2015. Campaign one ended in October 2017 after 115 episodes, and campaign two started in January 2018 and ended in June 2021 after 141 episodes. A number of one-shots were aired in the hiatus between the two campaigns. After campaign two was completed, the limited series Exandria Unlimited aired from June 2021 to August 2021. The third campaign premiered on October 21, 2021.
The series is broadcast on Thursdays at 19:00 PT on the Critical Role Twitch and YouTube channels, with the video on demand (VOD) becoming available to Twitch subscribers immediately after the broadcast. The VODs are made available for the public on Critical Role's website and uploaded to their YouTube channel on the Monday after the live stream. Prior to the COVID-19 pandemic, the show had broadcast live, but has been pre-recorded since its return for episode 100 of Campaign Two.
The cast own the intellectual property from the show, and the show also lends its name to the studio owned by the cast—Critical Role Productions. The studio has produced Critical Role and Talks Machina since 2018. A number of licensed works based on the show have been released, such as several comic books and two official campaign setting guides. The Legend of Vox Machina, the animated series based on the first campaign of Critical Role, premiered on January 28, 2022.