TV Casting: Heidi Klum, Paulina Porizkova to Pose for 'Desperate Housewives'

Heidi Klum and Paulina Porizkova will reportedly guest on an upcoming episode of 'Desperate Housewives.' The supermodels will play themselves in the episode, airing in March, when Gaby (Eva Longoria Parker) and Angie (Drea de Matteo) run into them in New York City. Somehow, we doubt they'll be on their best model behavior. [E!]

More casting news after the jump.Heidi Klum and Paulina Porizkova will reportedly guest on an upcoming episode of 'Desperate Housewives.' The supermodels will play themselves in the episode, airing in March, when Gaby (Eva Longoria Parker) and Angie (Drea de Matteo) make a pit stop in New York City. Somehow, we doubt they'll be on their best model behavior. [E!]

Good news for fans of the hit USA series 'White Collar': Actress Marsha Thomason, who plays junior FBI agent Diana Lancing, has just been promoted to series regular. According to reports, Thomason -- who has been MIA since the pilot -- will be featured prominently in season 2, and will make her way back to the show as early as the season 1 finale. [Ausiello Files]

Brace yourselves: Kathy Najimy will guest on the March 24 episode of 'Ugly Betty,' playing the orthodontist who at long last removes Betty's braces. Additionally, Najimy will appear in a fantasy sequence as Betty's guardian angel. Last month, ABC announced that 'Betty' has been canceled after four seasons, to the disappointment of many AOL TV fans. [Ausiello Files]