Brickhaus is a Case 53 and a member of the Irregulars.
History
Background
Brickhaus was experimented on by Cauldron at some time in the past, leading to them being released as a Case 53.
Gold Morning
When the Irregulars raided Cauldron's base and attacked Doctor Mother, Brickhaus defended her along with Weld, Gentle Giant, Sveta, and six other Irregulars according to Sveta. Brickhaus made it inside without being shot down.[1]
References
Template:The Irregulars