Mallie Marek is the mother of Galen Marek who was killed by Trandoshan slavers whilst defending the Wookiees. She served in the Clone Wars as a Jedi Knight of the Galactic Republic. Although raised and instructed to uphold the Code of the Jedi Order, Mallie developed an emotional attachment to Kento Marek, a fellow Jedi Knight whom she met on the planet Talus. Defying strict tenets of the Order, Mallie and Kento married in secret after falling in love with each other. During their self-imposed exile, the Republic was reorganized into the Galactic Empire and all Jedi—including former Jedi—were declared enemies of the New Order. In order to escape the Great Jedi Purge, Mallie and her husband went into hiding, eventually settling on Kashyyyk, the homeworld of the Wookiee race.
At some point after building their home on Kashyyyk, Mallie gave birth to a son, Galen Marek. Not long afterward, Mallie fought a group of Trandoshan slavers in defense of the Wookiees and to protect her family. Her subsequent death forced Kento Marek to raise their only son on his own. When Sith Lord Darth Vader launched a massive invasion on Kashyyyk, Kento Marek was killed in a duel against the Sith Lord. But since Mallie's son was an extremely rare prodigy of the Force, Vader chose to train Galen Marek as his own secret apprentice and personal assassin. In time, Mallie Marek and her husband were forgotten by their son, who knew himself only as "Starkiller." Before Galen's redemption and untimely demise, he recovered a few repressed memories of the father and mother that he could barely remember.