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NCIS Upgrades Brian Dietzen to Series Regular for Season 10: 'I Couldn't Be Happier'

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NCIS Brian Dietzen

Jimmy Palmer’s workload is about to increase on NCIS.

Brian Dietzen, who for years has recurred as medical examiner Dr. Donald “Ducky” Mallard’s right-hand man, has been promoted to series regular status on TV’s most-watched drama …READ MORE