He was the leader of his own pirate group. Before the Galactic Civil War, he lead his pirates around in the ship Hungry Ghost in the Outer Rim. Instead of killing any enemies, he would place his ship close enough to a vessel so that spider droids could be placed on the ship. The droids were able to stun the passengers, and Redkihl Rokk's pirates were able to loot the ship of any valuable items. After doing this, he would let the ship drift in space.
As the Republic turned into an Galactic Empire, Rokk was still one of the most infamous pirates in the galaxy. He traveled to Yavin 4 almost immediately after the famous Battle of Yavin to kill an old enemy, Han Solo, and any other passengers aboard the Millennium Falcon. He boarded the ship and attempted to kill Solo, Leia Organa, Chewbacca, and C-3PO with the spider droids but failed. He sent a squad of pirate crewman with vibroblades to kill the passengers, but failed in this also, as Luke Skywalker appeared out of hyperspace.
Rokk ordered all of the ship's laser cannons to fire on Skywalker's T-65 X-wing, and he damaged the ship, causing the small fighter to crash into one of the Hungry Ghost 's many hangar bays. Another squad of pirates were sent to kill Luke, but they all escaped soon after and destroyed Rokk and his ship with a bomb.