Greybok Greybok was a Wookiee male tribal diplomat who was enslaved and forced to mine spice on the planet Sevarcos in a mine controlled by the Galactic Empire . He and his fellow slaves the Weequay Hatchet and the Quarren Palabar freed themselves during the Battle of Sevarcos . Later , Greybok and his friends took part in the liberation of the Wookiee homeworld of Kashyyyk . Biography . Liberation on Servacos . Prior to the Age of the Empire , Greybok was a tribal diplomat . When the Empire enslaved the Wookiee species , he was enslaved and shipped off to the spice mines of Sevarcos . As a slave , his job was to swing a pneumo - hammer and pulverize rock . After trying to escape the mines on one occasion , the slaver s chopped off one of his arms as punishment . Sometime after the Battle of Endor , the Imperial mines on Sevarcos were attacked by the New Republic and Greybok watched the battle unfold alongside the Weequay slave Hatchet and the Quarren slave Palabar . Hatchet suggested the trio use the opportunity to escape , but Greybok , with the support of Palabar , demanded they aid the Republic and fight both the slavers and the Imperials . Ignoring Hatchet ' s protests , Greybok charged into the fight and flung one Imperial into a crevasse , heading for the corral in which three rancor s were kept by the slavers . Once at the gate , the Wookiee beat off the lock with a rock while under Imperial fire , allowing the rancors free to attack the Empire ' s forces . As the first rancor exited the coral , it knocked the gate into its Wookiee liberator , flinging Greybok into a rock . Dazed , the slave was unable to defend himself when a Zygerrian slaver approached and shot him with a needler , intending to kill him with the weapon . However , before the pain caused by the needler stopped Greybok ' s heart , Hatchet bludgeoned the slaver to death with a rock . Seeing he was saved , the Wookiee passed out , only awaking once the battle was over and the Imperials and slavers defeated . Unsure of what to do next , Hatchet asked a nearby New Republic soldier , who informed the trio they were free , but beyond that was not sure what would happened to them . After the soldier had moved on , Hatchet suggested that they make the most of the freedom and take a walk . Liberation of Kashyyyk . In 5 ABY , Greybok , Hatchet , and Palabar joined Han Solo and Chewbacca ' s mission to free Kashyyyk from Imperial rule . The Zabrak bounty hunter Jas Emari recruited them and a ragtag crew of Wookiee refugees . Together , the team traveled to Kashyyyk on her gunship " Halo " . At the behest of Palabar , the rebels used pneumo - hammer s to hammer eyebolts into the wroshyr tree s so that the Solo ' s team could take up position and fire on Camp Sardo ' s deflector shield generator . When Hatchet claimed that he did not want to be there , Greybok silenced him by shaking him with his one remaining arm . After the former Imperial loyalty officer , Sinjir Rath Velus disabled the inhibitor chips controlling the Wookiee population on Kashyyyk , Greybok and his fellow crew served as gunners aboard Jas ' s gunship " Halo " . They blasted Imperial Forest trooper s , LAIT gunships , and AT - ST walkers . Following a fierce battle , Kashyyyk was liberated by the combined efforts of the Wookiees and the New Republic . In the months after the liberation of Kashyyyk , Greybok accompanied Chewbacca , other Wookiees , and New Republic soldiers on mopping up operations against Imperial holdouts . On one such operation , Greybok and his team shot several Imperial soldiers that had cornered a Wookiee child slave named Lumpawaroo , who was Chewbacca ' s son . After Commandant Dessard was taken prisoner , Chewbacca and Waroo reunited . Personality and traits . Greybok was a tall Wookiee . Prior to the Age of the Empire , he was a tribal diplomat . He lost an arm while he was working as a slave in the spice mines of Sevarcos . Due to his work as a slave , he knew how to wield a pneumo - hammer and pulverize rock . Despite losing one of his arms , Greybok was still strong enough to fling an Imperial in mechanized battle armor down a crevasse . Following his emancipation , Greybook and other Wookiee refugees participated in the liberation of Kashyyyk . Behind the scenes . Greybok first appeared in the novel " Aftermath " , which was written by Chuck Wendig and published in 2015 .