Investigator Patrick Jane (Simon Baker) is to face the evil leader of a religious cult in an upcoming episode of 'The Mentalist'.
TVGuide.com reports that 'Halloween' [remake] and 'A Clockwork Orange' star Malcolm McDowell has signed on for the role.
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The creator of 'The Mentalist', Bruno Heller, described McDowell's character in the episode as "a great heavy".
"He seems to have his sinister tentacles in every pie, which is really mixing horrible metaphors, but he's that kind of guy," said Heller. "We're very lucky to get someone as great as Malcolm McDowell to play that."
'The Mentalist' is on RTÉ One on Sunday nights at 9.30pm.