The Big Brain is a hive mind of Coluans.
History[]
The Brainiacs that survived the crisis decided to merge with the Big Brain when they realized that Earth-Prime is not their world. Querl Dox from Earth-TUD16 granted Earth-Prime's Brainy her life projector before joining the Big Brain.[1]
Appearances[]
Supergirl[]
Season 5[]
- "The Bottle Episode" (mentioned)
- "Back From the Future - Part One" (mentioned)
Season 6[]
- "Truth or Consequences" (mentioned)
- "Kara" (mentioned)