In 2375, Senator Kimara Cretak arranged for Velal to take her place at meetings on Deep Space 9, while she attended a Federation-Romulan conference on Romulus. However, she was imprisoned for treason against the Empire and Velal took her place as the Romulan attaché to the station. (DS9: "Inter Arma Enim Silent Leges")
At a meeting with the three after the catastrophic Alliance loss at the Second Battle of Chin'toka, Velal was told that his people's starships were vulnerable to the Breen energy dampening weapon, as were the Federation's. He expressed dismay that the Klingons were the only member of the Alliance that could protect them from the Dominion, telling Martok his people were grossly outnumbered. He was also unsure that Damar and his Rebellion could assist them. (DS9: "When It Rains...")
Several weeks later, he met with Ross, Sisko and the now Chancellor Martok, to discuss the Dominion withdrawal from their territory. Velal thought it would be wiser to contain them within their new perimeter, rather than to mount a major offensive, which he believed would cost them "thousands of ships." However, after Martok and Ross stated they wanted to attack, Velal relented. (DS9: "The Dogs of War")
Velal was played by Stephen Yoakam. The character was first identified by name in "Inter Arma Enim Silent Leges", but was not identified by name in any of his appearances with exception, outside of the end credits beginning with "When It Rains...".
It is possible that Velal led the Romulan fleet at the Battle of Cardassia in "What You Leave Behind". Whether or not he survived is unknown, as he may have been aboard the IRW D'ridthau, the Romulan flagship, which was destroyed in the battle. Velal was not seen when the surrender documents were being signed. In the Star Trek Customizable Card Game, Velal's card states he commanded the flagship Rovaran during the Dominion War.