SCP 076

Background
According to the SCP lore and the bible tale its based off of "Cain and Abel are the first two sons of Adam and Eve. Cain, the firstborn, was a farmer, and his brother Abel was a shepherd. The brothers made sacrifices to Yahweh, each of his own produce, but Yahweh favored Abel's sacrifice instead of Cain's. Cain then murdered Abel, whereupon Yahweh punished Cain by condemning him to a life of wandering. Cain then dwelt in the land of Nod,  where he built a city and fathered the line of descendants beginning with Enoch."

-Wikipedia.

It is unknown when or why Able went AWOL.

Involvement in the Series
Able was first used in the series by General Kaige to destroy an SCP site and kill off a few people. Which ironically lead to Kaige's termination by the Overseer Council. He was then later introduced in the series leading Mobile Task Force Omega-7 "Pandoras Box" where people like Iris, Simmons, Simon, etc.

Personality
Able has a very brute and tough personality threatening to kill people and usually entering a rage state where it goes on a rampage killing anything in its way (Of course the foundation has a collar with a bomb to stop this).

Appearance
Able wears a robe with several red markings of Sumerian origin.