No, but Ziva is in the episode Last Man Standing
There has never been any indication that actress Pauley Perrette, or her NCIS character Abby Scuito, ever had intentions of leaving the show.
Pauley Perrette, Abby Sciuto as the gothic forensic at NCIS, has no credits for any of the Law and Orderseries. But she also appeared as Abby on two episodes of JAG, and two episodes of NCIS Los Angeles.
No. Pauley Perette (Abby Scuito) does not appear in a swimsuit in NCIS. She comes up in all sorts of crazy and sexy costumes in NCIS, but until today, she hasn't come in a swim suit or a bikini. She might in future, but that is something we cant tell for sure.
yes there is one
No
No such explosion ever happened.
yes ever much
They have not yet
Rocky Carroll plays the character of the NCIS Director Leon Vance. Leon Vance joined the NCIS Cast in Season 5. His first appearance was on Episode 14 of NCIS Season 5 "Internal Affairs". He has been with the team ever since. He also took over as the NCIS Director when the existing character Jenny Shepard gets killed at the end of season 5 During Season 8, one of the old timers in NCIS tries to kill Leon for spoiling his plans years ago of becoming NCIS director. Gibbs and team figure that out and save him
no.
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The latest season finale is season 9, episode 24 "Till Death Do Us Part". That is the final episode of season 9. That wasn't the last ever episode of NCIS, they have renewed NCIS and there will be a season 10.