The NCIS-verse has expanded, and Mark Harmon is still along for the ride. CBS announced in January that a sixth spinoff series of the long-running military-police procedural was on its way, and that the new show,

According to TVLine and Deadline, NCIS: Origins co-showrunner David J. North revealed during a panel discussion with reporters on Thursday, Sept. 19, that Harmon would briefly appear on the show's Monday, Oct. 14 premiere, in addition to narrating the series and being one of its executive producers.

Mark Harmon once shared what it might take for him to return to the ‘NCIS’ franchise after his very peaceful exit.