Gregor Eisenhorn

Inquisitor Gregor Eisenhorn, recognizable by the grumpy expression.

Gregor Eisenhorn is an Inquisitor of the Ordo Xenos operating out of the Scarus Sector, and the hero of the eponymous Eisenhorn novels by Dan Abnett. He essentially is the Grimdark James Bond, in that he ran around, saving the galaxy from all kinds of heresy, while scoring with dozens of sexy women the entire time. He is responsible for training the equally awesome Inquisitor Gideon Ravenor, who was incredibly similar to his master in terms of efficiency, though Ravenor did things with a much more angst-y monologue.

Eisenhorn is a psyker, for whatever it's worth. He is definitely not the strongest, but his meager abilities serve his duties well, in that he can sense disturbances in the warp, communicate with people over distances without producing noise, and he can also rape your mind. This comes in handy several times, as he frequently uses psychic weapons and items. The one distinct problem brought up by his psychic abilities is the fact that his one true love, Alizabeth Bequin, is an Untouchable, making physical proximity painful for him, let alone physical contact. She wound up eating shit and was placed in a cryo-tube after falling comatose, before Eisenhorn could finally suck it up and admit his feelings after a century of working with her, and thus he is now so ronery ;_;. He does, however, occasionally visit her tube and talk to her.

Ideology and Its Development

The man in his later years. He got scarier and yet cooler in his later years.

Eisenhorn started off his career as a Puritan Inquisitor, meaning that he was fucking hardcore. He went around with high-bar morals, shooting other Inquisitors for being radical pricks, gaining him cool points with the rest of the Inquisition. However, shit hit the fan and he ultimately found himself chasing a daemonhost named Cherubael across Scarus while picking up more and more HERESY as he went along. He became obsessed with screwing that prick Cherubael over, and stumbled on a HERESY so big it cost him his high and mighty Puritan status to be able to clean it up. He wound up taking advice from a major, imprisoned heretic on how to deal with heresy, and in the process set himself down the road of becoming a Radical Inquisitor. He saved the galaxy, imprisoned Cherubael using an extremely HERETICAL book and then went along his merry way.

The heretic who Eisenhorn got advice from was Pontius Glaw, an arch-heretic who was thought to have been dead after causing mass havoc in the sector years before Eisenhorn's time; in reality he escaped the Inquisition by having his conscience placed in a little box. Glaw had a distinct problem with Eisenhorn, as the Inquisitor had cheated him out of returning to a physical form. Life gets lonely inside a small box, and so Eisenhorn managed to convince him to give him information in exchange for being able to wander around in a servitor body. Eisenhorn left Glaw's box to be attended to by a Tech-Priest friend, which was probably the biggest mistake he ever made, as Tech-Priests have a tendency to make everything dangerous. Rather than simply give him a normal servitor chassis like Eisenhorn asked, the Tech-Priest apparently gave Glaw a body that would make General Grievous envious, complete with a cloak made of knives. Glaw killed the poor guy then escaped, in order to take vengeance on Eisenhorn. It was ultimately due to Glaw's assault that Eisenhorn became a full-blown radical. He began implementing more and more heretical means to figure out Glaw's plans, estranging himself from his remaining colleagues in the process. He went as far as to, with the help of his student Ravenor, enlist the aid of an eldar Farseer. After completely falling from grace, being named a rogue by his peers, and losing his friends, Eisenhorn disappeared, followed close by Cherubael, who he has bound into his servitude.

TL;DR:

Eisenhorn is a total fucking badass.