NCIS season 19 spoilers follow. NCIS has teased the introduction of a new character in the McGee family, played by Home Improvement star Patricia Richardson. In the upcoming episode ‘Docked’, which airs tonight (November 8) on CBS in the US, Richardson will join the cast as Tim McGee’s mother-in-law. The episode synopsis reads: “NCIS investigates the death of a man on a cruise ship whose body is discovered in the ship’s sauna by none other than McGee’s mother-in-law, Judy (Patricia Richardson).” Sonja Flemming/CBSGetty Images Related: NCIS season 19 just solved the show’s biggest mystery Richardson is best known for starring as Jill Taylor in ABC’s Home Improvement, for which she…