Charming, self-serving and vain, Kellog is a master manipulator and a narcissist. Kellog found his talent in charming and manipulating others at an early age. He trained as a psychologist and managed to slip through the cracks of the existing corporate structure to create a hedonistic paradise for many years until he was discovered and sent to prison.
Even in prison he was able to create a mini paradise, managing to get dirt on the warden which secured his early release, but not before meeting with Kagame. The two men had a mutual appreciation of their matching charismatic abilities. Kagame was able to present the revolution as a means for Kellog to create a world that would serve his love for all things hedonistic. Kellog took the bait and became an important player in Kagame's plans.