White Collar will close out its six season run with the return of Matthew Keller.

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Last seen in season 3, Mr. Keller was bound for prison after kidnapping Elizabeth Burke and confessing to stealing the Nazi treasure in order to settle his score with some gun-toting Russians.

Deadly and unpredictable, Keller will return by episode 2, according to TV Line. It looks like Keller will play an integral role as the show winds down, particularly since IMDB states that he will appear in four of the final six episodes.

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Set to return to USA on Nov. 6, the series will end its run by pitting Neal Caffrey and Agent Burke against one of the world's most exclusive criminal groups - the Pink Panthers. Too bad Steve Martin won't be on hand to explore the world of haaammm-burgers.

"This season will not disappoint, with an exciting and shocking ending that fans will never forget," teased network president Chris McCumber, according to Entertainment Weekly.

Find out more when White Collar returns to USA on Nov. 6 at 9 p.m. ET. Click the video below to see a preview for the series next episode, "Borrowed Time."