Her In Plain Sight character is pregnant, and so is Mary McCormack, star of the USA Network show. But that’s about where the commonalities end. “I’m not very good with a gun,” McCormack, 42, says. Of course, Mary Shannon doesn’t have children — Margaret, 6, Rose, 3, and a third due in September — to preoccupy her. “From 8 a.m. to 3 p.m., I work with a much clearer head because my kids are in school. But when they’re away from me and not asleep, I’m racked with guilt.” . . . Wedded bliss came at just the right time for 
Kara DioGuardi, the former American Idol judge who now can be seen on Bravo’s Platinum Hit. The songwriter, 40, married schoolteacher-turned-contractor Mike McCuddy almost two years ago. “Marriage in your late 30s is different from marriage in your 20s. You have a really great sense of who you are.”
Who’s News Column Contributors: Olivia Barker, Lorena Blas, Gayle Jo Carter, Donna Freydkin and Nancy Mills
