Selex

Lieutenant Selex was the chief engineer of the Romulan scout ship Tyvek. While exploring the Delta Quadrant, the Tyvek was lost to the Lucinda entity, but Selex beamed himself and the Tyvek's command officers to a shuttle. They were able to escape to a nearby habitable planet. Selex and the other officers were nearly eaten by a family of the planet's inhabitants but were rescued by the USS Anomaly. After the Anomaly dealt with Lucinda, Romulan High Command insisted that Selex and the other Tyvek officers stay aboard, so the Romulans would be more involved in the Anomaly's day-to-day operations. Selex served as one of the Anomaly's engineering officers. (Bold Faced Lies [BG])

After hostilities with the Vulcans ended, Selex determined that Commander Prosak had to be killed due to her RommaVulc allegiance. He took this to Commander Vioxx, since he was the ranking Romulan officer. Vioxx at first dismissed the idea, but after Sub-Commander Remax explained how it could possibly lead to all of them being sent back to the Empire and Vioxx receiving command of a warhawk, Vioxx said he would consider it. (Hard Sell [BG])