NCIS Season 14 will be losing another major character ,and this will break fans’ hearts once again.

David McCallum is set to exit the show after Season 14. The Scottish actor has been playing Dr. Donald “Ducky” Mallard since the NCIS debut in 2003. The history buff Medical Examiner has been one of the fan-favorite characters in the show. Aside from being ME, Ducky also provides psychological profile on the possible criminals that the team encounters.

When Ducky leaves NCIS, Special Agent Jetro Gibbs (Mark Harmon) and Abby Sciuto (Pauley Perrette) will be the only original characters left from Season 1. McCallum, 82, first appeared as Dr. Mallard in JAG in 2003.

Although the official reason for his departure has yet to be announced, several sites noted that it could be because of health reasons. In one interview, McCallum hinted that NCIS Season 14 could be his last. He said handling work for him has not been as easy as when he was still 28.

In March, McCallum admitted to news.com.au that being in NCIS keeps him active and alive. “When you have to be at the NCIS set at seven o’clock in the morning, remember the lines and give a performance, I think that’s tremendously good for your health. It keeps you alive. I don’t want to give that up.”

Apparently, the show is already working on the story of Ducky’s exit from Gibbs’ team. Will the character be recast in the future? Or will Ducky be killed off?

Watch upcoming NCIS Season 14 Episode 5 below.

NCIS Special Agent Antony DiNozzo, played by Michael Weatherly, was the last character that left NCIS. DiNozzo was written off after Season 13. There have been speculations that the cocky agent might drop by and congratulate his fellow agent Timothy McGee (Sean Murray) of his engagement to Delilah Fielding (Margo Harshman).

In the recent episode of NCIS Season 14 titled Love Boat, McGee finally proposed to his longtime girlfriend Delilah.

NCIS has been renewed for Season 15 in February. No official word yet if there will be changes to that.

NCIS Season 14 airs every Tuesday at 8 p.m. on CBS.