Massif, a humanoid of small stature, was a Force-sensitive individual who belonged to the Knights of Ren during the Galactic Empire's reign. Following the defeat of the Hutt Clan within the Jekara system at sometime in the past, Massif was among the Knights and other figures present on the flagship, the Vermillion, of the criminal organization Crimson Dawn.
The initial, though unnamed, appearance of Massif occurred in War of the Bounty Hunters 5, which is the fifth edition of the Star Wars: War of the Bounty Hunters comic book miniseries, authored by Charles Soule. His identification as Massif took place later in the fourth issue of the Star Wars: Crimson Reign miniseries.