Ood Brain

The Ood Brain was a huge living brain that under natural circumstances controlled the connection between individual Ood, facilitating their Hive mind. It was capable of telepathically reaching Ood over the distance of three galaxies. It is shown to be living as Klineman Halpen threw Ryder on to it and it swallowed him. Whether or not he knew it did this t is unknown.

However some centuries before the 42nd century humans discovered the brain beneath the Northern Glacier on the Ood Sphere. By 4126 it was contained in warehouse 15 of Ood Operations, surrounded by a telepathic barrier so it couldn't communicate with the Ood. It was kept alive even though it had to be contained because without it, the Ood would die. The neutralisation of the brain, together with lobotomising the Ood, allowed them to enslave Oodkind. Dr. Ryder, an agent working for Friends of the Ood, managed to infiltrate Ood operations and after years of patience became into the position where he could covertly lower the intensity of the field, which first manifested itself as Red-eye and later resulted in a full-blown Ood rebellion. The Doctor eventually shut off the barrier freeing the Ood from slavery.

Where has Red eye in the Ood has once been a sighn of possesion by a stronger mind it was in this case a manifistation of the Ood Brain's subconsious desire for revenge wich before Doctor Ryder's help it could only place in a few Ood but then the entire planet group after. All the diffrent behaviour patterns in the Ood during Planet of the Ood where a manifestaion of the Brain's subconsious with theRed eyes representing revenge and the Rabid Ood representing anger. Sigma however was the foucus of the Brain's paitience and had all the brains intellect and mercy focussed on him which allowed him to fuction has an individual despite the fact he had a translator orb; and subsequently conver Halpen in to Ood.