Actor Michael Weatherly is leaving NCIS at the end of Season 13
Actor Michael Weatherly poses during a photocall for the television series "NCIS" during the annual MIPCOM television programme market in Cannes, southeastern France, October 8, 2012. Reuters/Eric Gaillard

The “NCIS” Season 13 finale is only a few episodes away. Michael Weatherly recently teased his Twitter followers about potentially huge surprises by showing an interesting photo. As the actor is set to exit the series as Tony DiNozzo, fans are now speculating on the imminent exit which coincides with the finale.

Spoiler alert: This update contains “NCIS” Season 13 spoilers. Details include highlights of the previously aired episodes.

“Closed set for the finale on #ncis and they ain't kidding,” Weatherly captions a photo of a signage, warning against trespassing. Could this be related to a surprise appearance of Cote de Pablo’s Ziva David? Tiva fans could only hope. There has been no confirmation about Ziva’s return for DiNozzo’s departure. However, fans have been strongly expressing their plea for such a scenario.

When Jeanne Benoit (Scottie Thompson) returned for two episodes earlier in “NCIS” Season 13, there were sufficient information to prepare the audience and even hype the potential story. What could be happening in the finale that the producers and crew seem to be extra-careful against spoilers and leaks?

In NCIS 13x19, the last episode (“Reasonable Doubts”), DiNozzo and his father (Robert Wagner) find themselves in a more solid ground as father and son who have significantly resolved past issues. It remains to be seen whether this is Wagner’s last episode as DiNozzo Sr, a recurring character in “NCIS” for many seasons now.

Meanwhile, two actors have been named as new cast members of “NCIS” possibly as regulars from Season 14. Sarah Clarke (“24” and “Bosch”) is playing FBI Special Agent Tess Monroe, while Duane Henry (“Doctors”) is playing Clayton Reeves of MI-6, TV Line has confirmed.

This week’s new episode (airing April 5 on CBS) is called “Charade.” It is another Tony-centric episode, which could provide more clues for fans to use in predicting the “NCIS” Season 13 finale. Here is Weatherly’s teaser about this year’s finale:


WATCH: 'NCIS' Season 13, Episode 20 Promo Video (CBS on YouTube)