Specialist Valerian Alpha
A skitarii leader by the books. Red mechanicus robes and enough plasma weaponry to deal with any issue they come across.
Having led expedition after expedition to success Valerian was eventually transferred to be the immediate subordinate of Enginseer Elythal Bernadotte who was to climb to the rank of Magos Explorator. While still technically the protector of their esteemed Explorator, their services were volunteered to the Harlocke brothers in exchange for passage and most importantly the right to assist in the locating of archeotech (which just so happens to find its way into the Magos’ department)