Fallout season 3 has added several new cast members, including actors from Star Wars: The Acolyte and The Power of the Dog. The new castings include Manny Jacinto, Emily Mortimer, and Thomasin McKenzie, although some reports also mention other additions, such as Aaron Paul, whose involvement is not universally confirmed. The specific roles of the new cast members have not been detailed, with some reports referring to a "mystery role" for one of the Star Wars actors.