Indigo

Indigo is a Coluan known as Brainiac 8. She was considered the deadliest criminal on Fort Rozz.

Fort Rozz
Brainiac 8 was imprisoned on Fort Rozz when it was trapped in the Phantom Zone. After years of searching she finds the young Kara Zor-El pod. She took over the pod as the young Kryptonian awoke and noticed a computer console in her dashboard that lights up with a logo with three dots in a triangular shape, before Fort Rozz's engines activated. Using the pod they are able to escape the Phantom Zone.

Indigo
Taking the identity Indigo she traveled through the internet with hopes of wiping out the Humans. She tried to release information about an infidelity website to Catco, but Cat Grant refused to release it. The monitors and other electronic devices start to go haywire at CatCo and the hacker told Cat that she ignored what was on the drive, and warns her that she will bring chaos to National City. Immediately the hacker does just that by disrupting the traffic signals.At Kara's apartment, Kara and James Olsen watch Winn Schott try to crack the code to no avail when the hacker appears on the screen and teleports through the computer into the room as a blue woman with the symbols of Brainiac appears and attacks, with Kara ready to fight back, but Hank and Alex arrive and scare Indigo off. Moments later, and after scaring a couple off. Indigo teleported through another computer and meets with Non, but he wasn't in the mood to flirt with her as he still grieving over Astra's death. Indigo tells Non that Astra’s notion of living alongside the humans can’t work, and vows to change that so she and the Kryptonians can be only ones left on Earth.

At the military site, Indigo has already disabled the codes as a general tries to enter the place and she takes out everyone, then activates the missiles. As Kara arrives to fight Indigo, Indigo gets the upper hand and escapes but Kara recovers and goes after the missiles, knowing that anything she will try will destroy National City, prompting her to consult Hank, who guides and helps Kara disarm the missiles. Indigo wasn't finished with Kara yet and sends more missiles, while she notices that Winn has begun sending a virus and teleports her arm through a phone screen and begins choking him. The virus succeeds in finishing off Indigo, and as she lays helpless in front of Kara, she revealed that she was the one who connected both the pod and the ship that bought them to Earth, then disintegrates.

Finally, Non, using the Omegahedron, places it on a computer and a new version of Indigo begins to materialize, but in pieces, with Non saying that he wants her to do things his way.

Powers

 * Cybernetic interface: Brainiac 8 is Coluan a cybernetic being. She is able to transfer body in the form of digital code. She can interface with any machinery and manipulate computer systems.
 * Super strength: She has enhanced strength equal to a Kryptonian.
 * Invulnerability: Indigo body is denser than a human's but not nearly as durable as a Kryptonian's.
 * Shapeshifting: She can take the from of a blue athletic female or a blonde human. She is able to manipulate her limbs to stretch to great length and create claws.
 * Self Repair: As a digital being is able to self repair.

Abilities

 * Expert hand-to-hand combatant: Indigo is an expert in unarmed combat.