Nicholas Andrew Kovac was a high-ranking official in the National Security Agency (NSA) who held the position of Deputy Director in 2009. He appeared in the novel Tom Clancy's Splinter Cell: Conviction acting as chief advisor to the NSA Director. Kovac was untrusted by his own subordinate and was in fact a mole inside the NSA working for a shadow organization called the Guoanbu (Chinese counter-intelligence agency) and has then been incarcerated for treason.