He also played the villian David Jones in season 1 of Fringe. This should be awesome!
Mad Men's Jared Harris Cast As Moriarty In Sherlock Holmes 2
Reported by Jay Cochran - 05:54 PM 2010.09.28
THR reports that actor Jared Harris (Mad Men) has been cast as Holmes' arch-enemy Moriarty in the upcoming Sherlock Holmes sequel from Warner Bros.
Harris joins Sherlock Holmes cast members Robert Downy, Jr. Jude Law and Noomi Rapace for the next installment in the Sherlock Holmes sage which is slated to open in theaters