Brainiac 8 first appeared in Titans/Young Justice: Graduation Day #1 and was created by Judd Winick and Alé Garza.

However, she is revealed to be a villain sent to kill Donna Troy and prevent her from stopping the Coluans.

[4][5] In the "DC Rebirth" continuity reboot, Indigo appears as a member of the Fatal Five before being killed by Zor-El.

[6][7] Indigo possesses an analytical computer-like brain, enabling her to think and perceive information at great speeds.

[8] As a unique inorganic being, she can fly, project force fields, and fire blasts of energy from her eyes or hands.