Ducky does his thing on NCIS. His thing is a pretty gruesome job, but he does it well.
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Gibbs and Duck on the February 14, 2012 episode of NCIS.
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Abby, Ducky and Tim in the 200th episode of NCIS.
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Ducky and his new girlfriend are introduced to us on next week's NCIS. Cheryl Ladd guest stars.
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David McCallum as Dr. Donald "Ducky" Mallard on NCIS. What a great character.
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Ducky does his thing in "Restless," the second episode of Season 9 of NCIS.
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McGee, Ducky and Palmer on the Season 9 premiere of NCIS. "Nature of the Beast" airs September 20 on CBS.
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An NCIS agent is found dead on the Season 9 opener. Will Tony and Gibbs be able to piece together the puzzle?
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Gibbs, Ducky and Jimmy in the Season 8 finale of NCIS.
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David McCallum at work on NCIS. His character, Dr. Donald "Ducky" Mallard, has been with the show since the beginning, and is always a fan favorite.
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Ducky does his thing at the crime scene. That being find the cause of death and occasionally talk to the corpse.
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Ducky in the May 11, 2010 episode of NCIS. Dr. Mallard is always a treat to watch ... conversations with corpses and all.
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NCIS Quotes

McGee: All right. Well you should probably know that Abby and I used to date?
Bishop: Ew. Like, each other?
McGee: Yeah.
Bishop: Wait - isn't that a violation of rule 12, never date a....
McGee: It was a long time ago. After we'd broken up, one night I went to her lab. Found a scribbled piece paper; a list. Potential boyfriends had to fulfill certain conditions by a pre-arranged date or else, goodbye.
Bishop: Such as.
McGee: Things started off relatively normal: opening the door for her, flowers, putting the seat down. Then around number 8, it gets uh...
Bishop: What?
McGee: Does she know you have these?
Bishop: Does she know you have these?
McGee: Yeah she wasn't happy when she found out.
Bishop: These are all very specific.
McGee: Yeah.
Bishop: These ideas apply to you?
McGee: No those rules weren't in place when we were together. At least I don't think so.
Bishop: What's with the two month cutoff? Abby's sabotaging herself. I've seen stuff like this before. We have to talk to her.

Tony: One other question, I know you're an expert in English history. And I was just wondering, have you ever heard of Archibald Drummond, the 17th Earl of Trent?
Ducky: The Earl of Trent. No, I can't say I have. Why?
Tony: I was just wondering. Thanks.