Robo–Brain is made from:
- Brain: Broken Arrow Toys cast of McFarlane Monsters Frankenstein
- Hat: Indy Colonel Vogel
- Bubble: Star Wars Clone Wars Anakin
- Body: RoC Destro
- Hands: Clone wars Commando Droid
- Lower legs: Resolute Cobra Commander
Before he was a puppet, he was an unnamed scientist, the man who would one day become known as the Brain performed experiments on animals to raise their intelligence. One of these was on a captured gorilla, raising its I.Q. to the genius–level of 178. He named the gorilla Monsieur Mallah and educated him for almost a decade before making him his personal assistant.
His colleague, Niles Caulder grew jealous of his work and arranged for the scientist to get caught in an explosion, which destroyed the scientist's body. Only the brain survived, which Caulder planned on putting into a robotic body. After he was defeated by the superheroes, the brain was rescued by one of the Secret Nazi agent and kept The Brain safe in the Nazi Prison Island for a long time. Years later, The Brain was transferred to the puppet body and create the new robotic Nazi Puppet and called it, “Robo–Brain”, by Professor Zivilabzeichen and now in the order of Zombie Hitler.