Shannon O'Hara is a fictional character portrayed by Nikita Ager in the TV series NCIS.
In the first episode they appeared in, titled Identity Crisis (season 5), they were 38 years old.
They appear in 1 episodes out of a total of 467 aired so far
Episodes1
Identity Crisis
episode S5.E4 october 2007While demonstrating an autopsy, Ducky announces murder; Gibbs and company investigate. The victim worked for the FBI, which tried to catch a person who erased old identities and created new ones. The NCIS and the FBI catch the bad guys.