Mischa Barton was formally charged with driving under the influence and possession of marijuana, stemming from her arrest in December. Police announced Tuesday that the former star of Cisco Adler‘s bedroom and The OC was also charged with driving without a valid license. Barton, 22, will have her official arraignment on the misdemeanor charges on Thursday in Beverly Hills Superior Court.

In an especially moving and vulnerable recent Instagram post, Rob Kardashian said goodbye to his daughter. "He wasn’t leaving little Dream for an extended period of time, but he still shared a photo of the child online and wrote as a caption: "Saying bye to my beautiful baby girl … she is smiling at me. U see how she looking at her daddy.

Matthew Fox has been involved in a number of bizarre, potentially dangerous incidents in the past year, and it may land the former Lost star in rehab. The actor accepted a plea deal that will allow him to avoid jail time in his Oregon DUI case if he successfully completes a “court diversion program.” He pleaded no contest on June 1 to one count of driving under the influence of intoxicants, and will be forced to treat his apparent alcohol issue.

Brooke Mueller’s brother, Scott, has just gone to court and obtained temporary guardianship of Brooke and Charlie Sheen’s twin sons Bob and Max. This latest chapter in the ongoing, contentious saga comes after temporary guardian Denise Richards made it clear she could not continue in the role. Denise, who was married to Charlie before he was married to Brooke (he’s now divorced from both), also has two little children fathered by the actor.

It is surprisingly and sadly all over for Chad Michael Murray and Kenzie Dalton. The engaged couple has gone the way of Miley Cyrus and Liam Hemsworth, a rep for the actor confirmed today, saying in a statement to Just Jared: “Chad Michael Murray and Kenzie Dalton quietly parted ways earlier in the year. Please respect their privacy at this time.