This weekend, a rumor went floating around that Guy Pearce had joined the cast of Ridley Scott’s upcoming Alien-prequel-but-not-an-Alien-prequel, Prometheus. We held off for confirmation and now the good folks over at The Playlist have made that confirmation. There’s currently no word on what role Pearce will play, but he’s a valuable addition to any cast, and the cast for Prometheus is an embarrassment of riches: Noomi Rapace, Michael Fassbender, Charlize Theron, Idris Elba all have leading roles and they’ll be joined by Logan Marshall-Green (24), Rafe Spall (Hot Fuzz), Sean Harris (Red Riding Trilogy), Kate Dickie (Red Road).

Plot details are still being kept under wraps, but the film will reportedly take place in the Alien universe, but not necessarily be a direct prequel to Scott’s original 1979 film. Prometheus is due out in 3D on June 8, 2012. Pearce recently co-starred in the miniseries Mildred Pierce and he’ll next be seen in theaters in the Guillermo del Toro-produced horror flick Don’t Be Afraid of the Dark.