April 15, 2021 CBS handed out more renewals this week, adding “NCIS,” “Blue Bloods,” “Magnum,” “Bull,” and “SWAT” to the list of returning series. The shows will be joining the renewed comedies on the network, as well as the upcoming spinoffs that were announced earlier this year. With the renewal, “NCIS” will return for a nineteenth season, and Mark Harmon is expected to return. The series, which has been running strong since 2003, also stars Sean Murray, Emily Wickersham, Wilmer Valderrama, Maria Bello, Brian Dietzen, and Diona Reasonover. Belisarius Productions, in association with CBS Studios, produces “NCIS,” with Frank Cardea, Steven D. Binder, Chas. Floyd Johnson, Mark Horowitz, Mark Harmon, Scott Williams, and Donald P. Bellisario serving as executive producers.