Former NCIS star Pauley Perrette claimed she's "terrified" of the show's lead, Mark Harmon, "attacking me" in a tweet posted Friday.

"NO I AM NOT COMING BACK! EVER! (Please stop asking?) I am terrified of Harmon and him attacking me," Perrette wrote. "I have nightmares about it. I have a new show that is SAFE AND HAPPY! You'll love it! #HappyPlace Love y'all!"

After Perrette left NCIS in 2018, the actress responded to tabloid reports that she exited the series because of feud between her and Harmon that allegedly stemmed from Harmon bringing his dog to the set (where an alleged biting incident occurred in 2016) by calling the stories "total lies."

"There is a 'machine' keeping me silent, and feeding FALSE stories about me," she wrote, in part, at the time. "A very rich, very powerful publicity 'machine.' No morals, no obligation to truth, and I'm just left here, reading the lies, trying to protect my crew. Trying to remain calm. He did it."

Fans Bid Farewell to NCIS' Pauley Perrette with Heartfelt Messages

After the initial tweets last year, Perrette wrote, "I've been supporting [anti]-bullying programs forever. But now I KNOW because it was ME! If it's school or work, that you're required to go to? It's horrifying. I left. Multiple Physical Assaults. I REALLY get it now. Stay safe. Nothing is worth your safety. Tell someone."

In response, CBS, which airs NCIS, released this statement: "Pauley Perrette had a terrific run on NCIS and we are all going to miss her. Over a year ago, Pauley came to us with a workplace concern. We took the matter seriously and worked with her to find a resolution. We are committed to a safe work environment on all our shows." (Perrette tweeted her thanks to CBS for "always been so good to me.")

On Friday, in addition to her tweet about Harmon, Perrette also posted a photo showing a person with a bruised face whom she claimed was a crew member who had been assaulted. "You think I didn't expect blow back? You got me wrong. THIS happened To my crew member and I fought like hell to keep it from happening again! To protect my crew! And then I was physically assaulted for saying NO!? and I lost my job," she said.

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Perrette's new show, which she mentions as a place where she is safe and happy, is Broke, about a man, who gets cut off from his trust fund and must move in with his estranged sister-in-law, Jackie (Perrette).

Representatives for Harmon did not respond to a request for comment.

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