Kassihm was a Kadas'sa'Nikto pirate, and captain of the M'hendosat during the early years of the Galactic Civil War. Soon after the Battle of Yavin, he made the mistake of attempting to rob the crew of the Millennium Falcon, a mistake which resulted in the destruction of his ship and his crew by agents of the Rebellion. Soon after, he was captured by Grand Moff 4-8C, and agreed to assist the Imperials in their pursuit of the droid B-1D4, which had been among the Falcon's passengers, secretly plotting his own escape from the Empire all the while. After unsuccessfully pursuing the rebels and the rogue droid on Dweem, the Imperials eventually tracked B-1D4 to an Imperial prison on Merakai. After the droid's successful retrieval, Kassihm knew that he had outlived his usefulness to the Empire a