He has a 12th-level intellect making him one of the smartest life forms in the universe. He was a descendant of the original Brainiac, who had at some point discovered a way to pass his code down biologically.
When the Justice League members Supergirl, Green Arrow, and John Stewart were transported to the 31st Century by Brainiac 5 and Bouncing Boy in order to rescue the rest of the Legion from the Fatal Five.
John Stewart falls under the control of the Emerald Empress mind control device, but thanks to Supergirl the team are able to rescue everyone. Supergirl comfort with the era reminding her of home and her feelings for Brainiac 5 changes her mind and wishes to stay behind in the 31st Century
- Unique Physiology: Light blue skin, three electrodes on forehead.
- This version of the character is exclusive to the continuity of the DC Animated Universe and is an adaptation of Brainiac 5. The original character was created by Jerry Siegel and Jim Mooney and first appeared in Action Comics #276.
- Brainiac 5 was voiced by Matt Czuchry.
- Brainiac 5 is also known as Brainy.
- 7 Appearances of Querl Dox (DCAU)
- 6 Images featuring Querl Dox (DCAU)
- Quotations by or about Querl Dox (DCAU)
- Character Gallery: Querl Dox (DCAU)
Legion of Super-Heroes member