Read more about Ren (Star Wars) at: Wikipedia

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Ren is a fiction character in the Star Wars franchise. Created by writer Charles Soule and artist Will Sliney, he first appeared in Marvel Comics' 2019–2020 Star Wars: The Rise of Kylo Ren comic book series. Ren became a breakout character, appearing in 2021 in the comic series Star Wars: War of the Bounty Hunters and Star Wars: Crimson Reign, and the Disney+ Halloween special Lego Star Wars: Terrifying Tales, voiced by Christian Slater. He is the masked, bodily-scarred master of the "shadow"-wielding Knights of Ren preceding Kylo Ren, allied with Qi'ra and Crimson Dawn during the reign of the Galactic Empire.

Slater's performance as Ren received positive critical reception, leading to interest in him reprising his role in live-action media on Disney+.

Ren was first alluded to with the presence of Kylo Ren (portrayed by Adam Driver), master of the Knights of Ren, throughout the Star Wars sequel trilogy, first mentioned in Star Wars: The Force Awakens (2015), J. J. Abrams stating that the character (born Ben Solo) "came to the name Kylo Ren when he joined a group called the Knights of Ren."

Driver claimed that he was privy to several details of the Knights of Ren's backstory during the making of the films, with the group originally intended to consist of Kylo and several former students of Luke Skywalker; following the development of Star Wars: The Rise of Skywalker this backstory was discarded, with a new backstory elaborated upon in a prequel graphic novel titled Star Wars: The Rise of Kylo Ren, written by Charles Soule, illustrated by Will Sliney, and published by Marvel Comics from December 18, 2019, to March 11, 2020. The series instead established the Knights of Ren as an existing mercenary group founded by "Ren", a man named for the lightsaber ("ren"), and Kylo Ren's predecessor as the Knights' master.

Ren (Star Wars) has not been a contender in any CBUB matches.