Dmitri Vrenikin
Gender: Male   Male
Status: Arrested.
Portrayed by: Ryan Honey
 First Appearance
  ●   NCIS: Power Down (episode).
 Last Appearance
  ●   NCIS: Power Down (episode).
List of Appearances

Dmitri Vrenikin is a Russian working in America under the name of Colin Stone (alias).

Two years prior to Power Down (episode), Vrenikin worked Russian counter-intelligence and went freelance after he met Paxton.

After being exposed as the true mastermind behind the blackout, Vrenikin was taken into custody and jailed.