Hans Kho'ren has always preached that the aim of a Space Marine is to emulate their Primarch. His loyal apothecary, Kagh Bo'orchu, is essential for this. It is Kagh who implants new members of the Skull Takers with the gene-seed and blood of their Primarch to turn them into true World Eaters; Kagh who was one of the first apothecaries to experiment with the Butchers' Nails; and Kagh who, after Angron's apotheosis, studied with Lorgar's Word Bearers to discover the secrets of the Possessed. Kagh's drive to become more like Angron has taken him far from humanity, but his journey is not yet over.
Kagh Bo'orchu's right arm still bears the twisted Chaotic remains of his Narthecium, constantly in flux and emitting new spikes as required. His armour is brass, forged to mimic the Armour of Mars worn by Angron, showing he is an important figure in the Skull Takers. On his left shoulder he bears a gladiatorial shoulder pad, in memory of Angron's past; his right shoulder pad is a snarling skull, symbol of Hans Kho'ren's Skull Takers. His helmet is pale and horned, like all in the Skull Takers, in honour of their daemonic patron.