July 1 (UPI) -- Downton Abbey and Beauty and the Beast actor Dan Stevens is joining the cast of a new four-part Lego Star Wars special. Stevens will lend his voice to the villain Solitus in Star Wars: Rebuild the Galaxy - Pieces of the Past , a sequel series to Star Wars: Rebuild the Galaxy (2024). The new special is due on Disney+ Sept. 19. The voice cast also includes Gaten Matarazzo , Tony Revolori, Bobby Moynihan, Marsai Martin, Michael Cusack, Ahmed Best, Mark Hamill , Ashley Eckstein and