Watts will play the mother of series star Paul Kelly's John F. Kennedy Jr., and mother-in-law to Sarah Pidgeon's Carolyn Bessette.

In set photos from "American Love Story," Watts is seen styling both the incognito trenchcoat and headscarf style with the bold eyewear pieces. During her time at the White House, Kennedy Onassis often gravitated toward American designers, working with Oleg Cassini to create the "Jackie look."