Alia was a recurring antagonist in the CW TV series Smallville. A cloned Kryptonian soldier who served under Major Zod, Alia appeared in 5 episodes of Season Nine.
She was portrayed by Monique Ganderton who played Serilda of Abaddon and in Sleepy Hollow, Proxima Midnight in Avengers: Infinite War and Avengers: Endgame, Crane in American Ultra and an evil witch in Hansel & Gretel: Witch Hunters.
The original Alia donated her blood to Jor-El as a part of his experiment that involved an Orb as a means to heal those afflicted by war and disease. The Ruling Council insisted that Jor-El use this technology to preserve the Kryptonian race if Rao's prophecy should ever come true. After she donated her sample, Alia perished in the explosion that destroyed Kandor and many of her fellow soldiers during the civil war on Krypton.
The Orb created clones of soldiers from Kandor who had their blood samples taken, including Alia, Jor-El, Major Zod, and others made them appear all over Earth. Alia was rendered powerless due to unknown circumstances and joined the Kandorian Army at the Luthor Mansion. After placing Zod on trial, he convinced them to follow him and the soldiers including Alia saluted to serve under him as their leader. The army left the mansion to get away from the influence of Tess Mercer.
After testing Oliver Queen to become a hero, Clark Kent met with Chloe Sullivan at Watchtower where she pulled up the video of Oliver's suicide attempt at the Ace of Clubs and zoomed in on a freeze frame of Alia and the tattoo on her back. Clark didn't understand and asked Jor-El about her origins. Jor-El explained that Alia was a Kandorian and told Clark that maybe she didn't come alone.
Alia was with Basqat and Faora when Zod ordered them to capture Jor-El; they took Jor-El from Tess Mercer's cellar, where he was being held. After interrogating Jor-El and discovers he had a son, Zod orders his soldiers to release Jor-El and begin searching for Kal-El. In fear of what Jor-El would do to them, Alia fatally wounded him before releasing him where he was found by his son.
After Chloe Sullivan prepared the passports and ID cards for the Kandorians to assimilate into society, she gave them to Clark who went to the R.A.O. tower construction site and finds Alia and Faora. He gives them their passports and ID cards to become official citizens. They both admit how they had misjudged his intentions and wonder if there is any way they could repay him for his kindness.