Fall TV Casting Shakeups: Michael Weatherly Returns to NCIS, Mark Harmon Joins Origins
An original Chicago P.D. star is reportedly leaving as production begins for the fall 2026 season.

“Michael Weatherly to NCIS and Mark Harmon to NCIS: Origins in a major role, to name a couple”
Michael Weatherly is reportedly returning to NCIS, according to TV Insider. The outlet also reports Mark Harmon will have a major role in the upcoming prequel series NCIS: Origins.
Who is leaving Chicago P.D.?
An original cast member is said to be departing NBC's Chicago P.D., the report states.
What other shows are adding new stars?
TV Insider notes new stars are joining series like Fire Country and 9-1-1: Nashville. The outlet clarifies it is not including departures announced in last season's finales.
Frequently Asked Questions
Which original Chicago P.D. cast member is leaving?
The TV Insider report does not specify which original cast member is departing the show. The identity of the exiting actor has not been publicly confirmed.
What role will Mark Harmon play in NCIS: Origins?
TV Insider states Harmon will have a 'major role' in the prequel series, but the specific character or capacity has not been detailed.
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