Katherine and her husband, Josh Kelley, are parents to 20-month-old daughter Naleigh. She admitted in a recent interview that they were worried when Naleigh wasn't yet walking at 17 months: "I think Josh and I started to get like those obnoxious parents that are a little, like, 'What's wrong with her? Why isn't she walking yet? What are we doing wrong?'" "Now we're, like, pushing her all day: start walking! But I figured we're probably fine. She'll start walking." She joked that they should be careful what they wish for: "I'll be like, 'Why can't she sit down and play quietly in the corner?'"
Katherine is currently hard at work on the new film "One for the Money", which is based on the wildly popular series by Janet Evanovich. Playing the character of Stephanie Plum is the reason that Katherine dyed her hair this dark brown shade.
Have you read the Stephanie Plum series? So far there are sixteen books, which means Katherine could be playing this character for a LONG time to come if they're all adapted for the big screen.