This couple, a man and a woman, also visited Deep Space 9 in 2370.
Together they observed William Patrick Samuels and Sakonna from an upper level of the promenade. Later, she managed to meet Samuels in a corridor and dropped her bag. Samuels, who helped her, was made unconscious by her male companion with a small device. As later revealed, they've worked for the Cardassians and helped to kidnap Samuels. (DS9: "The Maquis, Part I")
The female native was played by regular background actress Grace Harrell and the male native by regular background actor Joe Mack, both of whom received no credit for their appearance.
The aunt of Lathal Bine was a native of Beta moon who represented the Betans during a dispute with the neighboring Alpha moon in 2337, which nearly resulted in war. She was later described as "the iron willed lady of Beta Moon". Odan, a Federation ambassador mediating the dispute, convinced both her and Kalin Trose, her Alphan counterpart, to switch places for a week to better understand each other's position.
Her nephew, Lathal, would represent Beta Moon in negotiations when a second crisis erupted three decades later in 2367, again with Trose representing Alpha Moon and with Odan again mediating. (TNG: "The Host")
The two background actresses filmed their scenes on Tuesday 20 August2002 on Paramount Stage 9 and were identified as "Asparagus Heads" on the call sheet; the common call sheet name for the Peliar Zel natives.