The split between Party of Five star Scott Wolf and Kelley Wolf continues to get nastier.

The 57-year-old star on Tuesday filed court documents in Utah asking for a restraining order against his estranged wife, 48, entering a declaration.

The Boston-born actor’s brother Michael Wolf also entered a declaration in the matter, US Weekly reported after reviewing court docs.

‘It’s so sad for the kids, but Kelley is ready to fight like hell for her children,’ an insider close to Kelley, a mental health professional, told the outlet.

The source added: ‘It is not warranted, it’s cruel. And it’s incorrect.’

Daily Mail has reached out to reps for Wolf for further comment on the story.

Scott Wolf, 57, on Tuesday filed court documents in Utah asking for a restraining order against wife Kelley Wolf, 48

The former pair was seen at the RFK Human Rights Ripple Of Hope Awards on December 12, 2018 in NYC

Wolf, who has also been seen in films such as Go, The Night Shift, Emmett’s Mark and Inside Game, is father to three kids with his estranged spouse: Jackson, 16, Miller, 12, and Lucy, 11.

Wolf on June 9 submit to the court documents indicating his desire to divorce Kelley, who he exchanged vows with in 2004.

Wolf said in a statement at the time: ‘After 21 years of marriage, I have made the most difficult decision of my life, and filed for divorce from my wife Kelley.

‘Our children have always been, and continue to be, the loves of our lives and our every priority, so I kindly ask for privacy at this time as we help guide them through this new chapter.’

Kelley issued a statement saying that she was the one to submit the first paperwork indicating she and the actor were parting ways after 21 years.

‘I initiated a separation almost a year ago,’ said Kelley, who has a reality TV background, having appeared on the MTV’s The Real World: New Orleans and Real World/ Road Rules Challenge in 2000.

She continued: ‘I’ve been trying to file for divorce for months, but delays with legal counsel slowed the process.

‘Yes, the official petition came from the other party, but let the record show: I’ve been grieving this marriage for years.

Kelley and Scott Wolf at the Critics Choice Awards at Fairmont Century Plaza in January 2023

Kelley was pictured in Park City, Utah this week amid the ongoing split with the TV star

Kelley said that ‘this isn’t avoidance,’ but rather ‘acceptance,’ as she’s in a good place emotionally to cope with the drastic life change of a marital breakup.

‘I’m far past the grief,’ Kelley said. ‘I’m well into the healing. Very much so.’

Kelley dealt with some legal issues in the wake of the divorce filing, as she had been detained and hospitalized by authorities in Utah June 13.

Kelley, an Arkansas native who currently works as a life coach and author, had been doing an Instagram Live segment at the time of her run in with authorities and could be heard admonishing them on the stream.

She told law enforcement: ‘This is shameful. Be ashamed of yourself, gentleman. I know what I’m doing; this is my job. Shame on all of you.’

Wolf appeared alongside Neve Campbell, Jennifer Love Hewitt, Matthew Fox and Lacey Chabert on the screen on the popular Fox series Party of Five from 1994 thru 2000.

Wolf portrayed Bailey Salinger, who was forced to grow up and help raise his family as they deal with life after their parents’ deaths. Hewitt was featured as Sarah Reeves Merrin, his sensitive off-and-on girlfriend from high school.

Wolf has also appeared on TV shows such as Nancy Drew, V, Everwood, The Night Shift and Perception.