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Dan Williams was an NCIS Special Agent whose mysterious assassination at the hands of a group of professional assassins on the orders of Vakar prompted the Office of Special Projects led by G. Callen to be called in to investigate.
Trivia[]
- Allan Louis later appeared in the main NCIS series in the Season 10 finale episode,Damned If You Do (episode) and again in the Season 11 premiere episode, Whiskey Tango Foxtrot (episode) and the Season 11 episode, Past, Present and Future (episode).