In 'NCIS', which actor played Leroy Jethro Gibbs?

In 'Family Matters', which nerdy neighbor is famous for "Did I do that?" In 'Everybody Loves Raymond', what is Ray's job? In 'Law & Order', what sound effect separates scenes? Which 'Law & Order' spin-off focuses on sex crimes and stars Mariska Hargitay? In 'CSI: Crime Scene Investigation', in which city is the original series set? In 'Miami Vice', what are the names of the two detectives? In 'Magnum, P.I.' (1980), which actor played Thomas Magnum? In 'Magnum, P.I.' (1980), in which U.S. state is the series set?