Mary Crosby

Actor (Natima Lang) — Deep Space Nine

American actress, famous as Kristin Shepard in Dallas, who played the Cardassian dissident Professor Natima Lang, Quark's former love, in Deep Space Nine.

Mary Crosby is an American actress best remembered for the soap Dallas, in which her character Kristin Shepard was revealed as the person who shot J.R. Ewing.
She guest-starred in the second-season Deep Space Nine episode Profit and Loss as Natima Lang, a Cardassian teacher and member of the dissident movement who arrives at the station in a damaged ship with two of her students.
Natima was once a correspondent on Terok Nor, where she and Quark fell in love before he betrayed her trust. The episode plays as a homage to Casablanca, with Quark trying to win her back while Garak and the Cardassian authorities close in on the fugitives.