Jizabel Disraeli

Jizabel Disraeli is the illegitimate son of Alexis Hargreaves and is Cain's half-brother. He was a sadistic doctor who worked for his father's secret organization, Delilah. Unlike Cain who despises Alexis, Jizabel has an almost obsessive love and loyalty to their father, even admitting once that Alexis owns his body and soul and that he doesn't want to escape the abuse. Jizabel despises the close bond that Cain shares with Riff due to the fact that he believes unconditional love doesn't exist.

History.
As a child, Jizabel cared deeply for the lives of animals, but was tricked into eating his pet sheep by his father. In his childhood, Jizabel was rather sickly. In order for him to get well, Alexis murdered his older sisters so their healthy organs could be transplanted into Jizabel's body. Upon learning what his father had done, Jizabel felt that he was unworthy of love and became depressed. Like Cain, his back is scarred from Alexis' whippings; but unlike Cain, he sees the scars as "symbols of [his] father's love"

At the climax of Godchild, Jizabel sacrifices himself and commits suicide. By slashing his own throat and giving Riff his own blood, he gives him one more day to live, which Riff uses to save Cain.

In his dying moments, it is revealed that the bond between Riff and Cain was the object of his hatred and despair, but Jizabel realized that the love he was searching for so badly was already in his grasp (in the form of his bond with Cassian)