Vala is a cloned member of the Kandorian Army and a recurring antagonist in the Ninth Season of the CW TV series Smallville.
She appeared in 4 episodes throughout the season.
On Krypton, Vala was the sister of Faora and was specialized in cybernetic engineering and an M.D. in the Kandorian Army. She, like the other Kandorians, donated a sample of her blood that was stored inside the Orb that would ensure Krypton's survival.
Vala was one of hundreds of Kryptonian clones created by the Orb when it was opened by Tess Mercer. Vala soon discovered that she lacked the powers, that Kryptonians would normally possess under a yellow sun. Wanting them, Vala and a few other clones began experimenting on humans to find the answers they were seeking.
She experimented on two humans Dr. Bernard Chisholm who was resurrected and Daily Planet reporter John Corben who was transformed into a cyborg. Unable to find results, Vala and the other scientists abandoned the experiments.
Clark Kent and Chloe Sullivan created background information for Faora, Vala and several other Kandorians as they attempted to be integrated into human society. With access to a fake I.D. and passport, Vala used them to get a job at a bookstore in Metropolis. She met Faora and Clark outside the store who she called Kal-El as she was not use to human names.
Faora believes their lives would be better if they had their powers. Vala, on the other hand, waved the matter aside, as she knows that Clark will be there to protect them and the humans.
Faora warns Vala not to get her hopes up about Clark as he is in love with a human. Faora invites Vala out for a coffee after she closes up the bookstore. Vala gets her keys from the counter when the front door opens, but Vala sees no one.
After locking up, she saw a masked man who kidnapped her and put her to sleep before she could escape. When Vala wakes up, she is imprisoned in a container, wearing just her underwear, along with two other Kandorians.
Vala is still imprisoned by her captor, who has treated her and their fellow Kandorians as guinea pigs. He knows she is an alien, even though she vehemently denies it. He began cryogenically freezing her so that he could expose her along with his other evidence. Vala is horrified by the severed arm with a Kandorian tattoo he shows her and screams for the man to stop as he goes on to hack the other Kandorian.
Vala was still slowly freezing when Chisholm brought a captured Lois Lane to his lair. Lois was horrified to see Vala in her position and orders Chisholm to release her but Bernard insists Vala is an alien. When Bernard states Vala and her kind saved his life, Lois said he should be grateful, not harm her.
Later Zod managed to track down Vala's location and found Lois. Lois tells him that only one survivor remains, pointing to a plastic curtain. Zod investigates and finds Vala, who he tries to free just as Chisholm returns. Vala was eventually saved by Clark who removed her from her frozen prison and covered her with a blanket and heat lamps to warm her.
Vala and Faora later chose to break away from Zod and his fascist ways, choosing to live peacefully with the humans. However, when Checkmate found them, she was to be executed with the group of soldiers she was with, but saved by Clark.