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Eisenhorn & Company
Inquisitor Gregor Eisenhorn
The titular Inquisitor, and main character of the trilogy.
A Pariah that Eisenhorn meets during his investigation on Hubris in Xenos. She joins his team then, and goes on to become one of the longest-serving members of his retinue as well as one of his closest companions.
Eisenhorn's savant, and one of his longest-serving companions.
An Arbites chastener from the planet Hubris. Joins up with Eisenhorn in Xenos to untangle a conspiracy behind a terrible atrocity committed on his home planet, and becomes a full time member of Eisenhorn's retinue by the end of the book.
A Glavian pilot and one of Eisenhorn's closest friends.
Eisenhorn's Interrogator by the time of Malleus, and the best pupil he's ever trained.
For more information about him, see the character sheet for his own series.
An ex-bounty hunter from Loki.
For more information, see the Ravenor character sheet.
Midas' daughter, she inherits his position as the pilot of Eisenhorn's guncutter. She never knew Midas, as he died shortly before she was born; this left her with a strong desire to get revenge on Fayde Thuring, the man who killed him.
A puritanical Inquisitor of the Ordo Malleus, who Eisenhorn ends up working with during Xenos (to their mutual dislike).
Introduced as Voke's interrogator in Xenos, Golesh Heldane has become a full-fledged Inquisitor in his own right by the time Malleus rolls around.
Another Malleus Inquisitor; he's introduced as head of the Ordo Malleus' branch in the Ordos Helican in Malleus, and becomes Grandmaster of the entire Ordos Helican partway through Hereticus.
An infamous Inquisitor of the Ordo Malleus, Quixos was once held up as an exemplar of his Ordo by other Inquisitors before he began to dabble with the powers of Chaos and fell from grace. He vanished hundreds of years ago, and was assumed dead by his peers. In reality, he's very much alive and very much a renegade...
The Forces of Chaos
Also called "the Recidivist," Murdin Eyclone is a heretic who acts as a mercenary, selling his services to various Chaos cults. Eisenhorn tracks him down on the planet Hubris and kills him at the beginning of Xenos.
An infamous heretic who was killed more than two hundred years before the events of the first book; while his physical body was slain, he lives on as a preserved consciousness inside an arcane device called "the Pontius".
A Chaos Space Marine of the Emperor's Children; works with the Glaws to recover the Necroteuch in Xenos.
A powerful daemonhost, who takes a keen interest in Eisenhorn as the series goes on...