Ronen Tagge, a male human hailing from the influential House of Tagge, was part of the Galactic Empire. Born to Felix Tagge and Adelaide, he was the nephew of Domina Tagge, who made sure he got everything his heart desired. Tagge's peculiar hobby involved amassing rare artifacts and artwork, only to then destroy them. He became obsessed with obtaining the fabled Rings of Vaale and employed mercenaries to help him acquire them.
Doctor Chelli Aphra, a rogue archaeologist who also sought the Rings of Vaale, brought about the destruction of Ronen's penthouse and nearly killed him. In response to this near-fatal incident involving her nephew, Domina put a bounty on Aphra's head. Just Lucky, a sniper, and Kharrek, a bounty hunter, captured the archaeologist and delivered her to Domina. Domina then tasked Aphra with infiltrating De'Rruyet Industries. Ronen survived, but was left with terrible scars.
Later on, Tagge pledged his allegiance to Crimson Dawn, the criminal syndicate. Together with its leader, Lady Qi'ra, he decided that Domina's reign over the Tagge Corporation needed to end, and he plotted to take her down. Tagge eventually enlisted the crew of Sana Starros, a smuggler, to aid his cause after he rescued them from a close call with the Spark Eternal. Tagge insisted that they owed him a debt, and they agreed to assist him after weighing their options, although Starros suggested killing Domina instead of merely overthrowing her. Starros's true motive was to gather proof of Tagge's betrayal against his aunt. Following an attack on Domina's flagship, the Acquisitor, Tagge managed to defeat Domina and proudly declared his loyalty to Crimson Dawn, mocking Domina about the supposed end of her control over TaggeCo. However, Starros and her crew then revealed that they had betrayed Tagge and were actually working with Domina. Armed with proof of Ronen's treachery, Domina used her protoblade to kill him, stating that his parents, Adelaide and Felix, would be unable to object to her decision given the evidence of his treason.
Ronen Tagge's initial appearance was in the first issue of Star Wars: Doctor Aphra (2020), the comic series from 2020.