- "I was just a hustling street performer trying to survive the Hard Knox life. One day, I was hit by a car and woke up in the hospital. They told me my arm had been severely damaged and that they used nanofilament technology to stitch me back together. Next I knew, it felt like my arm was getting a mind of its own. I began to realize that I could manipulate metal. Then I started to fear my arm was manipulating me."
- —Caleb explaining his origins
Caleb is the technician of the Gundogs, able to conjure a wide variety of technology. He is responsible for the massive observational array attached to the Cerberus that allows the Gundogs to track criminal activity in New York as well as to hack into government satellites.
Tin Man, Synth
Android (by AutE), Steel
Caleb is introduced at the beginning of the series. He is truly unique among the group.
Later when Caleb's self-inflicted experimentation turns him into a veritable transformer, his humanity dwindles to next to non-existence and it becomes apparent that he is not actually a product of Deoxycorp. In fact, he is a spy comprised of nanotechnology whose original orders are programmed to remain dormant while he establishes himself in the Gundogs' social network.
No information exists regarding Caleb's past. The branch of Deoxycorp in which he developed his powers remains a mystery even to him. The group found him in the London branch, but he appeared to be there of his own will. Though he initially had no designation, he eventually took the name Caleb as a moniker.
Caleb is a fabricated construct entirely composed of Automa's experimental nanites reverse-engineered from the technology Deoxycorp uses to develop its super-soldiers. Caleb's original purpose is to study the Gundogs and attain the secret of their abilities. He is also programmed to destroy them under the right circumstances.
Caleb is 6'6" with buzzed steel-gray hair and silver-gray irises. His pallor hints at genetic ties to Caucasian and African parents. He usually wears a pair of gray jeans, a white tanktop, and a button shirt.
Caleb is extremely talented in invention. He is able to understand the nature of mechanical constructs at a glance and theorize ways in which to combine technology into unimaginable devices.
Caleb is a master of polarity, being able to levitate and manipulate anything composed of metal. Despite this, his control varies dependent upon the atomic weight of the metal. He has an easier time manipulating ferric metals.
- His chosen name, Caleb, in Hebrew means "Whole-hearted; faithful". It is also a pun denoting the Greek word chalybs, the original name for steel.