A Bajoran scientist in the episode The Alternate who works with Dr Mora Pol and joins the expedition to a Gamma Quadrant planet in search of Odo's origins.
Dr Weld Ram is a Bajoran scientist who appears in the second-season episode The Alternate. He is a colleague of Mora Pol, the researcher who studied Odo after he was found, and comes with Mora to Deep Space 9 with news of a planet in the Gamma Quadrant where a probe has detected DNA patterns resembling the changeling's.
Weld, Mora, Odo and Jadzia Dax take a runabout to the planet, where they find a small lifeform and a stone pillar carved with unknown markings. When the pillar is beamed away the ground gives way and volcanic gas pours out.
Weld is overcome along with Mora and Dax, and only Odo, who does not breathe, is able to get them back to the runabout. He is brought to the station's infirmary to recover while the effects of the gas on Odo himself come to light.