NCIS Cast: Before They Were Stars

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Check out where you may have seen the NCIS cast before they were stars on the CBS hit show.  

1. Mark Harmon (Leroy Jethro Gibbs) - NCIS

Mark Harmon (Leroy Jethro Gibbs) - NCIS
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.

2. Pauley Perrette (Abby Sciuto) - NCIS

Pauley Perrette (Abby Sciuto) - NCIS
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.

3. Michael Weatherly (Anthony DiNozzo) - NCIS

Michael Weatherly (Anthony DiNozzo) - NCIS
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.

4. Emily Wickersham (Eleanor "Ellie" Bishop) - NCIS

Emily Wickersham (Eleanor "Ellie" Bishop) - NCIS
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.

5. Sean Murray (Timothy McGee) - NCIS

Sean Murray (Timothy McGee) - NCIS
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

6. David McCallum (Dr. Donald "Ducky" Mallard) - NCIS

David McCallum (Dr. Donald "Ducky" Mallard) - NCIS
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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NCIS Quotes

McGee, not me? McGoo, you?

Tony

Flemming: Director, it's *my* life.
Vance: And we're gonna protect it. [beat] You're welcome!