Rocky has been all over our TV screens throughout the years. He was Dr. Keith Wilkes on Chicago Hope, Carl Reese on The Agency and did guest roles on The West Wing, ER, and Boston Legal before coming on board NCIS.
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As much as we love Ducky, David McCallum had a long career before taking on the good doctor. Many will remember his as Illya Kuryakin on the 1960s hit The Man from U.N.C.L.E..
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Sean played Zane Grey on Harts of the West in the early '90s and later had guest roles on Silk Stalkings and ER before spending time on JAG and eventually landing at NCIS
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Although new to NCIS, Emily spent time on HBO's The Sopranos and FX's The Bridge and guest starred on Gossip Girl before becoming the new girl on NCIS.
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Before she became Gibbs favorite, Pauley could actually be seen in an ABC Afterschool Special "The Magical Make-Over". She later had guest roles on Frasier, The Drew Carey Show, Dawson's Creek, 24, and CSI before landing at NCIS.
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Before he was Tony DiNozzo, Michael started out as Theo Huxtable's roommate on The Cosby Show. He then spent time in The City (formerly the ABC soap Loving) and then opposite Jessica Alba in Dark Angel.
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Mark Harmon was a star long before he signed up for NCIS. Die hard fans might remember him from the primetime soap Flamingo Road, Dr. Caldwell for St. Elsewhere, or the third wheel in the Dave and Maddie triangle on Moonlighting. However, we're still mourning his untimely death as Agent Simon Donovan, CJ's romantic interest on The West Wing.
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The actor/exec producer appeared for a panel to discuss NCIS: New Orleans,
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NCIS Quotes

If someone thinks they have the upper-hand, break it. (Season 8, Episode 24)

Rule #16

[voiceover] Anyone can achieve their fullest potential, who we are might be predetermined, but the path we follow is always of our own choosing. We should never allow our fears or the expectations of others to set the frontiers of our destiny. Your destiny can't be changed but, it can be challenged. Every man is born as many men and dies as a single one.

McGee