Arrostos

Arrostos is a Chaos Human who is also known as Disease Realm. Arrostos's real name is Dr. Clifford Floyd Cordell; however, he no longer uses this name. Arrostos is presently living within his own Realm so that he can avoid attention.

Before he was made into a Chaos Human, Arrostos was a doctor that specialized in curing diseases. Due to an accident during one of his researches he was exposed to a toxin his body could not take and he passed away before arriving to the Emergency Room. He was taken to the Aperture Science Laboratory where he was converted into a Chaos Human.

As a Chaos Human, Arrostos learned that he was quite deadly and the scientists learned that his Chaos Form was so great in power that it should never be activated. He befriend Atticus Spark, another Chaos Human, who was able to create an anti-poison that would allow Arrostos to continue to live. His power was so great that it was literally tearing him apart from the inside.

Arrostos eventually joined with a group of other Chaos Humans, but he had a fallout and left the group to pursue his own pleasures of chaos. Eventually he decided to join Kinta, a Chaos Human he had befriended at some point in the past, and the twosome traveled around many Terra and collected many powerful people to make their own group. Arrostos became interested in Rem Stratford and decided to make him his friend.

During the "End" crisis, Arrostos was pitted against Rem Stratford, Lacy Devore, and Havock and ended up being forced into his Chaos Form. Due to meddling by Professor Azaranth, Arrostos was infected with Abomination and his Chaos Form was transformed into an Abomination Form called Pandemic. Pandemic was eventually defeated and Arrostos was saved by Atticus, who gave his life to cleanse Arrostos's heart.

After the incident, Arrostos became detached from life and his friends were either killed, scattered, or were made out of reach. Arrostos used this time to locate his son Polemos and he tricked Rem into reviving him from his cold sleep. Arrostos decided that he would "retire" to his Realm and let Polemos have some fun for awhile.