https://tvline.com/2022/09/19/ncis-mark-harmon-removed-opening-credits-season-20/

NCIS Vet Mark Harmon No Longer in Opening Credits, 11 Months After Exit ... NCIS' “transition” year apparently is over.

The Real Reason Why ‘NCIS’ Didn’t Remove Mark Harmon From the Opening Credits for 11 Months (https://www.cheatsheet.com/entertainment/the-real-reason-ncis-didnt-remove-mark-harmon-opening-credits-11-months.html/)

Why didn't 'NCIS' showrunners remove Mark Harmon (https://www.cheatsheet.com/entertainment/will-mark-harmon-return-ncis-1-condition.html/) from the opening credits as soon as he left the show? Here's why, according to the executive producer.