There'll be a force to be reckoned with on Criminal Minds next month: Star Wars alum Mark Hamill will guest-star in the drama's two-part season finale, TVGuide.com has learned exclusively.
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Details about Hamill's role are being kept under wraps, but could he be the BAU's season-long unsub/stalker The Replicator? In the two-hour episode, the team's pursuit of The Replicator will come to a head when one of them becomes a victim. Executive producer Erica Messer
also previously told TVGuide.com
that the BAU won't come face-to-face with The Replicator until the season's final two episodes.
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In addition to playing the galaxy's top Jedi Luke Skywalker, Hamill is also known for his voice work on Robot Chicken
, The Cleveland Show
and, most notably, as the Joker in several animated Batman series. Other TV credits include guest spots on Chuck
's final season and on The Neighbors
' season finale two weeks ago. Hamill is also in talks
to return for the new Star Wars
' two-part Season 8 finale will air Wednesday, May 22 at 9/8c on CBS.(Full disclosure: TVGuide.com is owned by a joint venture between Lionsgate and CBS.)