Some of the NCIS cast celebrated the dual birthdays of Michael Weatherly (Tony DiNozzo) and Rocky Carroll (Leon Vance) on July 8. Carroll turned 51 and Weatherly 46.

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Pauley Perrette, who stars as Abby Sciuto on the CBS show, uploaded a photo with both of them as well as fellow co-stars Emily Wickersham (Ellie Bishop) and Brian Dietzen (Jimmy Palmer).

"Had an #NCIS very happy @M_Weatherly and @RockyCOfficial birthday today!" she wrote as the caption.

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Dietzen also tweeted: "Spent the day celebrating the births of two of my favorite people, @M_Weatherly and @RockyCOfficial !! Send them some birthday love!!"

The celebration comes a week before the cast members will have their first table read for Season 12. There were rumors that the cast already started filming, but Dietzen cleared up the speculation on Twitter.

A fan tweeted the actor on July 7 and said, "Yay! #NCIS S12 begins filming today. Thank you." Dietzen replied, "Not quite yet! We start filming after our table read next week. I'll be sure to tweet out a pic or two!"

The upcoming season is likely to draw a big audience. The CBS show has been the top show in the U.S. for the last five years and recently become the most-watched drama worldwide. An estimated 57.6 million people tuned in to watch NCIS in 2013. For its success, the show received the International Television Audience Award for a Drama TV Series at the 54th Monte-Carlo Television Festival in Monaco in June.

Tags: NCIS