A leopard cardigan so classic and versatile it functions practically as a solid, looks fresh with a pencil skirt covered in blooms. "A skirt like this always works well on me," says Moynahan, who tends to avoid shorter styles. Her character on Blue Bloods, the daughter of Tom Selleck's New York City police chief ("I grew up watching him on Magnum P.I.—he's still a total stud"), is an assistant D.A. and, like the actress herself, a single mother. "She's not too fancy," says Moynahan, "but I like that she's strong."
Cardigan: August Silk, $40. Pencil skirt: Teri Jon Sportswear, $275. Necklace, M & B Vintage. Watch, Tiffany & Co.