STUDIO CITY (CBS) — Titus Welliver, always the villain… He stopped by KCAL9 Wednesday to spill secrets about his upcoming evil roles.

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The 50-year-old actor has landed a multi-episode arc on CSI as John, an arrogant military contractor who goes toe-to-toe with Russell (Ted Danson). As previously announced, Annabeth Gish has been cast as his wife, who’s hiding a secret.

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Welliver is known for taking on villainous roles. On Lost, he played the mysterious and evil Man in Black. He portrayed one of the Four Horsemen of the Apocalypse on Supernatural, as well as an evil Irish mobster on Sons of Anarchy. He’ll also return to The Good Wife as Peter’s nemesis in the Nov. 6 episode.

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To learn more about Titus Welliver, click here.