Mark Heller called TLC's actions against his client Jon Gosselin "mean spirited and inappropriate" during a recess in court proceedings Thursday.
Heller addressed press during a break in TLC's court bid for a preliminary injunction against Jon, who is being sued by the network for breach of contract.
Meanwhile, Jon has yet to show up for his own court proceeding and Heller said he wasn't sure if Jon would make it!
Heller told the press: "We tried to end this amicably but it seems to me TLC and Discovery are embarked in a mean-spirited campaign because they've been embarrassed. They've been exposed. And that's one of the reasons they are trying to seal (Jon's) contract -- they don't want to be anymore embarrassed."
He also said Jon had taken his kids to school in Pennsylvania this morning and didn't know if he would show up for court.
The lawyer attacked TLC's case and said: "TLC has taken the show off the air and shut it down. So on the one hand TLC says, 'We're not running the show anymore.' And on the other, 'even though we're not running the show we don't want you to work for anyone else.
"I think that is mean-spirited and inappropriate because Jon Gosselin, like any other father in America, has a right to go out and support his family."
He also said that despite a TLC exec's morning testimony that the network was embarrassed by Jon's trip to Las Vegas where he was photographed with bikini clad beauties: "I don't see that as anything inappropriate or breach or violation of his arrangement with TLC".