Em-Five was a droid that operated during the Imperial Era. When the smugglers Han Solo and Chewbacca required a part for their freighter, the Millennium Falcon, they tasked Em-Five with retrieving it on the planet Corellia. Shortly after arriving, they were confronted by Moloch of the White Worms criminal gang, who took Solo and Chewbacca to meet the crime boss Lady Proxima. While the smugglers escaped the Den of the White Worms, Em-Five acquired the part to repair the Falcon, informing Solo and Chewbacca that their starship could fly upon their return.
Em-Five informs Han Solo that the Millennium Falcon has been repaired.
At some point after 10 BBY, during the Imperial Era, the smugglers Han Solo and Chewbacca, in need of a starship part for their freighter Millennium Falcon, sought help from Em-Five. The Falcon landed on the planet Corellia, and Em-Five and the smugglers disembarked in Coronet City. Solo handed Em-Five a datapad containing information on what was required, asking that the droid collect the parts while he and Chewbacca lie low and avoid being noticed.
However, while Em-Five departed to fetch the part, the smugglers were caught by Moloch, a servant of the crime boss Lady Proxima, the leader of the White Worms criminal gang, to whom Solo once belonged. Solo and Chewbacca were taken to see Lady Proxima, but managed to escape from the den of the White Worms, and were chased by Moloch and a number of White Worms scrumrats to the Falcon. By the time that the smugglers returned, Em-Five had collected the required part and repaired the Falcon, allowing the ship to fly once again. Solo and Chewbacca boarded the Falcon and left Corellia, escaping the White Worms.
Em-Five had a humanoid figure, with red photoreceptors and gray plating.
Em-Five appeared in "Flight of the Falcon, Part 4: Lady and the Tramp," a comic story written by Michael Moreci, illustrated by Arianna Florean, and published in Star Wars Adventures (2017) 17 by IDW Publishing on January 30, 2019.