Grimgrim Grimgrim was a Wookiee warrior and , during the Galactic Civil War , a member of a Rebel Alliance unit known as the Rebel Four . The Wookiee carried a blaster but was nonetheless capable of using brute strength to best the forces of the Galactic Empire . During the war , Grimgrim participated in an assault on a secret Imperial base on the planet Vatleria . Although the Wookiee and the rest of the unit overcame the stormtroopers who guarded the outpost , the Rebel Four were plunged into subterranean traps by Darth Vader , an Imperial - allied Sith Lord who was hiding within the ruins . Grimgrim was crushed to death by boulders . Biography . The Wookiee warrior Grimgrim joined the Rebel Alliance at some point during the Galactic Civil War , a conflict in which the Rebels attempted to overthrow the Galactic Empire and restore the Old Republic . Grimgrim eventually became a member of an Alliance unit known as the Rebel Four , a quartet in which the Wookiee served alongside F4 - MF , Falaem Onn , and Soo Rcharrz . At some point before 4 ABY , an informant tipped the Rebel Four off to the location of a hidden Imperial base on the planet Vatleria , a world that had been abandoned by its original population . Under the command of the droid F4 - MF , Grimgrim and the others sought out the base to stop whatever Imperial machinations were afoot there . The team eventually discovered stone ruins guarded by Imperial stormtroopers . Confident that the fortress was the base they sought , they sneaked past the guards . Upon F4 - MF ' s command , Grimgrim and the others stormed the base and attacked the last group of stormtroopers there . In the ensuing fray , Grimgrim fought with bare hands , while the other Rebels fired on their enemies with blasters . Unbeknownst to Grimgrim and the Rebel Four , Darth Vader , Dark Lord of the Sith , detected the Rebels ' assault with the the Force and watched the goings - on from a viewscreen inside the fortress . When Vader sprung a trap for the intruders , ropes ejected from the ground and snagged Grimgrim and the others . The Wookiee was separated from the rest of the Rebel Four and dropped into a pit . There , a barrage of boulders tumbled down upon the warrior . Although the Rebel attempted to deflect the rocks with brute strength , the barrage proved too much , and the Wookiee died . Similar traps killed the rest of the unit . Personality and traits . Grimgrim was a stocky member of the Wookiee species , with black eyes and a muscular body covered in blond fur . During the assault on Vader ' s fortress , Grimgrim led the charge against the Imperial stormtroopers , wielding a blaster in the left hand and wearing a brown bandolier . Nevertheless , the Wookiee engaged the enemy troops with bare hands , hurling stormtroopers overhead and slamming them down . Behind the scenes . Grimgrim and the rest of the Rebel Four feature in a comic story named for them , " The Rebel Four , " which appears in " Star Wars Tales 9 " . The story , first published in October 2001 by Dark Horse Comics , was written and illustrated by Jay Stephens . Several reviewers have noted that the premise of " The Rebel Four " closely matches that of the comic book " " , published by Marvel Comics , with each member of the Rebel team corresponding to one of the Fantastic Four in appearance and persona . Grimgrim mirrors the character Ben Grimm , also known as , who has a rocky body and incredible strength . Similarly , the way in which each member of the Rebel Four dies mirrors the super power of his or her Fantastic Four prototype ; in Grimgrim ' s case , death from boulders reflects Ben Grimm ' s rocky body .