By Lynette Rice
December 17, 2010 at 11:30 PM EST

Image Credit: Albert L. Ortega/PR Photos; Bob Charlotte/PR Photos; Jeff Kravitz/FilmMagic.comModern Family is about to demonstrate that Claire Dunphy has always had excellent taste in men. EW has learned exclusively that Matt Dillon (Crash) will play the ex-boyfriend of Julie Bowen’s character in an upcoming episode of the ABC comedy.

There’s no airdate – much less a script for the episode – but EW has also learned this juicy little detail: Claire’s ex has a new galpal and the mother of three is probably not going to like her. It’s Claire’s mom, DeDe Pritchett! Shelley Long will reprise her role as DeDe, a role she originated last season in an episode titled “The Incident.” (Remember? DeDe comes to visit the family for the first time since making a huge, drunken scene at Jay and Gloria’s wedding).

Dillon most recently appeared in Armored and Old Dogs.