4-LOM "For-Elloem" was an ambitious LOM-series protocol droid who overrode his programming and became a galactic thief and later a bounty hunter and partner of the Gand findsman Zuckuss. Following the Battle of Hoth, both 4-LOM and Zuckuss were hired by Darth Vader to capture Han Solo, captain of the Millennium Falcon and hero of the Rebel Alliance, but the bounty was ultimately claimed by rival hunter Boba Fett. 4-LOM and Zuckuss are initially hesitant to pursue the bounty placed on Fett's head by his former employer Jabba the Hutt, but they are persuaded to join the hunt when they learn of Fett's current whereabouts - information of which their competitors are unaware.

4-LOM does not have a canon voice, so we are open to different interpretations. However, he should not sound monotone, nor as proper as the typical protocol droid. He has 11 lines in the first 2 episodes, paying $10.50, but will have more lines later on.