Scott Wolf filed for a temporary restraining order against his estranged wife, Kelley Wolf, in the latest development of their contentious divorce.

The “Party of Five” actor’s request, which he submitted in Utah Tuesday, contains a declaration from himself and his brother Michael Wolf, according to Us Weekly.

“It’s so sad for the kids,” an insider close to Kelley told the outlet, referring to the estranged couple’s three children: Jackson, 16, Miller, 12, and Lucy, 11.

“Kelley is ready to fight like hell for her children,” the source added. “It is not warranted, it’s cruel. And it’s incorrect.”

Reps for Scott, 57, did not immediately respond to Page Six’s request for comment.

Earlier this month, the exes announced they were separating after 21 years of marriage.

“It is with a heavy heart that Scott and I are moving forward with the dissolution of our marriage,” Kelley wrote via Instagram on June 10.

“This has been a long, quiet journey for me—rooted in hope, patience, and care for our children. While I will not speak publicly about the details, I feel peace knowing that I’ve done everything I can to walk this path with integrity and compassion.”

At the time, the “Real World” alum referred to her estranged husband as “one of the best fathers [she’s] ever known and one of the best partners a woman could have the privilege of sharing life with.”

Three days later, however, Kelley was detained and taken to the hospital on an “involuntary hold” after allegedly making “concerning” remarks to a family member.

She also accused Scott of “abusing” her — though a man at their Utah residence claimed to police that an unnamed woman had aggressively assaulted him in March.

Despite the setback, Kelley shared a photo of herself at a bar shortly after she was released from the hospital with medical bracelets on her wrist.

On Wednesday, Kelley confirmed via Instagram that she was put on a mental health hold and claimed her family was ghosting her.

Scott, meanwhile, has remained silent about the drama online and instead shared that he was taking his kids on vacation.

“On the road with my forever squad,” he captioned a snap of his children walking through an airport terminal.