Leroy Jethro Gibbs is a fictional character of the CBS TV series NCIS, portrayed by Mark Harmon. He is a former U.S Marine Corps Scout Sniper turned special agent who commands a team for the Naval Criminal Investigative Service. Gibbs is the most accomplished marksman on the team and the most skilled at handling violent standoffs; he depends on his other agents heavily for technical forensics and background checks. He is patient but firm with his team and has little patience for bureaucracy; he commands most other main characters—including Anthony DiNozzo, Timothy McGee, Eleanor Bishop, Ducky Mallard, and Abby Sciuto—and is the backbone of the cast.
Leroy Jethro Gibbs the only man Carlos ray (Chuck) Norris is scared of