Gubo 

Gubo is a recurring character that first appeared as a minor antagonist in the webcomic, Leviathan, in Book7 - Ingress.
Gubo is an overarching antagonist introduced in Canto I: The Outcast of Limbus Company. He is currently in opposition with Limbus Company to retrieve the Golden Boughs within the ruined Lobotomy Corporation facilities.

Gubo is a very professional man, as seen in Leviathan; though he was not interested in any of the art put on the Ring's auction and refused to bow his head, he wore the face veil and respected the gallery’s traditions. This however was a more pragmatic choice in order to avoid potential conflict, wanting to gain access to the Ring's corridor through the path of least resistance without unnecessary conflict.

At the core, Gubo is a cold-blooded man who will do whatever is takes to achieve his goals and keep his unflappable demeanor no matter the circumstance. When adapting to difficult circumstances, the scientist will still chat nonchalantly with even those who threaten his own life.