Cote de Pablo (Ziva David), David McCallum (Ducky Mallard), and Michael Weatherly (Anthony DiNozzo). References External links Mark Harmon's CBS profile Crossover characters in television Fictional American military snipers Fictional characters from Pennsylvania Television characters introduced in 2003 Fictional Gulf War veterans Fictional gunnery sergeants Fictional Naval Criminal Investigative Service personnel Fictional Silver Star recipients Fictional United States invasion of Panama veterans Fictional United States Marine Corps personnel NCIS (TV series) characters de:Liste der Figuren aus Navy CIS#Leroy Jethro Gibbs