Scandal's Darby Stanchfield is set to reprise her role on ABC's Castle. Stanchfield is Castle's ex-wife and Alexis's mother. She is slated to appear in a January episode and will take the liberty to make herself feel right at home.
Meredith comes to town to take her daughter Alexis (Molly Quinn) to Europe. But when Alexis falls ill with mono, Meredith moves into Castle's loft to take care of her. As if that wasn't bad enough, Castle will also be hosting his new girlfriend Beckett (Stana Katic), whose apartment is being fumigated.
Source: TV Guide