Christie Brinkley's ex-husband has blasted the model/actress for going public with the couple's child custody battle, insisting her media outbursts are harming the couple's kids.

Peter Cook insists his former wife should stop being so open about their court affairs, and accuses Brinkley of throwing her family "under the bus" to promote her return to Broadway in the musical Chicago.

He tells ABC News, "She can use her celebrity to get the media to say, 'He's a bad guy....' I'm not trying to sell tickets to anything. I don't want this press. I'm not interested in it. And there's got to be a better way for her to do it.

"Go do a charitable act or something, get your name in the paper. But stop throwing your family under the bus.

"I don't know how you can ever rationalize your way out of fighting to have this private family matter become so public. And children will live with it forever. I mean, it used to be 40 years ago, it was in the newspaper and it ended up under a bird somewhere. But now it's Google eternity. This will never go away for my children."

Firing back at Cook's comments, which he made while filming a news segment for Nightline, Brinkley's attorney, Tom Campagna, says, "Peter Cook has repeatedly broken the confidentiality agreement that Christie has continued to uphold. Peter is the only one to go on national television spewing sexist, disgraceful, demonstrably false lies, which gives a taste of what Christie has had to endure since Peter betrayed his marriage vows. Peter embarrassed himself and hurt his family by having an affair with a teenage girl and admitting to an extensive pornography habit.

"While Christie, a single mother who has been the sole provider for her family, was working on Broadway, he refused Christie access to her children on her one day off. Four months ago, Christie quietly asked the court for Peter to fulfill his child support obligations, and most importantly, to uphold the anti-harassment order preventing his pattern of intimidation and smear campaigns. Sadly, he has chosen to make this his own self-serving publicity tour without regards for his children."

Brinkley filed court papers in November, claiming Cook had violated their 2008 divorce court ruling by sending her "aggressive" emails.