He can't help himself! As of now, Harmon has only appeared in the first episode of Origins, but he could show up in more, especially since the series was picked up for a full season. He's got opinions to share with the younger generation and is not afraid to dish out report cards and judgment from afar.

Origins leaving some torn despite their excitement. The actor left the show in season 19 and acts as executive producer

Meddling Mark Harmon may have retired from NCIS in 2021, but Knewz.com can reveal insiders say he thinks he’s still on the job, and his buttinski behavior is getting on the nerves of the cast and crew.