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NCIS Scoop: Mixology Brit Is Young Ducky — What Secret Will He Spill?

NCIS Season 12 Young Ducky Cast

What was Dr. Donald Mallard like as a duckling?

CBS’ NCIS this season will answer that question with an October episode that revisits the good doctor’s sprier days, to be lived out in flashback by Brit Adam Campbell (Mixology), TVLine has learned.

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“When we saw Adam, all we could think of was a young David McCallum,” NCIS showrunner Gary Glasberg says of the casting. (Indeed! See Exhibits A and B.) “We can’t wait to introduce him as young Ducky and watch what he brings to this unusual role.”

Thus far, this much is known about the episode: The flashbacks will shed light on Ducky’s past relationships as well as reveal… why he always wears bow ties.

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The real-life husband of Glee alum/The Millers star Jayma Mays, Campbell’s other previous TV credits include Touch, 2 Broke Girls and Harper’s Island.

NCIS premieres Season 12 on Tuesday, Sept. 23.

Want more scoop on NCIS, or for any other show? Email insideline@tvline.com and your question may be answered via Matt’s Inside Line.