After years of marching throughout Westeros with a gang of outsiders, a Game of Thrones fan-favorite will soon trade one fantasy world for another, as it appears that Beric Dondarrion is moving up the ranks from the leader of the Brotherhood without Banners to Captain of the Watch (no, not that Watch).

Deadline reports that Richard Dormer will join BBC America's The Watch, set in the Discworld universe created by the late author Terry Pratchett. Dormer will star as Sam Vimes, Captain of the Watch, with the series centering on a "group of misfit cops" in the lawless city of Ankh-Morpork "as they rise up from decades of helplessness to save their corrupt city from catastrophe."

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"I’m so thrilled to be part of this brilliant madness and mayhem. I was immediately drawn to the multitude of layers to Sam Vimes, and I find the dynamic between him and his band of disenfranchised comrades very compelling," Dormer said.

"The Watch will be a very BBC America show," AMC Network’s Entertainment Group & AMC Studios President Sarah Barnett said. "As with Killing Eve, we don’t go straight at an adaptation – we blur genres, undercut with humor, and hire the most genius writers and actors to create stories and characters that are both entertaining and very contemporary, that say something new."

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Debuting in 1983, Pratchett's satirical fantasy Discworld went on to include 41 novels, as well as a number of short stories and comics often including the City Watch as they guard the city of Ankh-Morpork against a variety of dangers. The last book, The Shepherd's Crown, was published in 2015, the year of Pratchett's death.

BBC America's The Watch is set to premiere sometime in 2020.