Abner Bell

Abner Bell is the Arch Orphnoch, or also known as the Orphnoch King. He is an orphaned boy rescued by Saral Seymour. Unknown to everyone, he's the most powerful Orphnoch in Kamen Rider: 555.

History
An anti-social young boy who was orphaned when his parents died in a fire caused by the Barnacle Orphnoch. Abner was placed in the Age of Discovery Children's Home orphanage run by Smart Brain until Seymour took him to his home & later stayed & lived in Kendrick's laundry mat, unaware of his immense power.

Abner soon began to act strangely & was eventually revealed to be the Orphnoch King. Whenever Abner blacks out, the Orphnoch persona emerges from his shadow to consume the lifeforce of Orphnoch, in which to fully mature. After being taken by Carter, Abner eventually transformed completely into the Arch Orphnoch. Fully awaken, the Arch Orphnoch fully evolved Anissa after beating Phi. It took Carter's sacrifice & Phi Blaster Form's Blaster Crimson Smash to defeat the Arch Orphnoch. But...

After the epic battle between all the riders, it was revealed that the Orphnoch King was powerful enough to withstand the assault from the Kamen Riders. Arch Orphnoch barely survived & was mortally wounded, placed in a stasis tank under Smart Brain's secret facility by the only genetically stable Anissa. Because his fate was never determined, it's unknown if he will ever return or remain dormant for eternity.

Ability
The Arch Orphnoch or Orphnoch King is of a special type who possesses the power to "complete" Orphnoch' evolution, removing all traces of humanity in the process while granting long life. Unlike others, the Orphnoch King can disintegrate them instantly.