Marc Attencio is a fictional character portrayed by Geoffrey Blake in the TV series NCIS.
In the first episode they appeared in, titled Gut Check (season 11), they were 51 years old.
They appear in 1 episodes out of a total of 467 aired so far
Episodes1
Gut Check
episode S11.E9 november 2013A security system detects a bug on the person of the SecNav; Tony contacts the NSA, where he finds a two-year-old paper describing such a breach; one man dies; the author helps the gang to nail the bad guys; Gibbs wants to keep her around.