Page Six: Mark Harmon's rep finally responds to rumors he's exiting 'NCIS'

Mark Hermon is reportedly going to remain on the long-running crime series "NCIS."

Page Six reported on the matter after investigating rumors that the actor was leaving the show arose on Thursday.

The network claimed that Harmon's representative said the claim is "completely false." The news originated from Celebrity Insider.

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Harmon, 67, was said to be suffering from "failing health." Last year, the executive producer had knee surgery.

CBS did not respond to a request for comment from Page Six. Harmon plays Leroy Jethro Gibbs on "NCIS." He executive produces "NCIS: New Orleans."

David McCallum, known as Donald "Ducky" Mallard on the show, is also rumored to be considering a departure.

Celebrity Insider said that his lower workload in the most recent season is behind the anticipated move.

After 15 seasons, alum Pauley Perrette (Abby Sciuto) was the last cast member to leave the show back in June. The star hinted at sexual abuse as a reason for her withdrawal.

She later had to defend herself against talk that she and Harmon were going through a feud. In an unexpected tweet she said:

"So many lies being spread about me on line by those who have ALOT to hide. I have done nothing wrong. I promise you that. Never did. Never."

Regardless, "NCIS" remained among the list of most viewed shows on television this year. It boasted a 16.7 million average viewership for 2018.

In comparison, former "NCIS" star Michael Weatherly managed to collect 13.5 million average viewership on his new 2016 show "Bull."

Other shows which topped the list was "America's Got Talent" with 14.3, "The Good Doctor" with 14.5, "Manifest" with 14.6, "Young Sheldon" with 15.7 million average views.

Additionally "This Is Us"averaged 16.6, "The Big Bang Theory" gained 13.3, and Sunday Night Football racked up 19.6. The return of "Roseanne" reached 20 million average views.