Kellik was a human male soldier who served Mantellian army

Mantellian Army Organization Planetary and Sector

of the Galactic Republic during the Cold War.
Stationed on Ord Mantell

Ord Mantell Planet

, a planet that is in a civil war

Mantellian Separatist Crisis Event Cold War (3653BBY - 3642BBY)

, Kellik worked inside Fort Garnik's interrogation center where he was responsible for identification of separatist

Mantellian Separatists Organization Planetary and Sector

collaborators and extract information. One such suspect was a young woman named Qo'el

Qo'el (Human) Character Minor Characters (Cold War era)

, who had attended a few separatist rallies, which gave Kellik probable cause to detain her. Throughout her interrogation, Qo'el insisted that she had no information on the separatists to share, but Kellik refused to believe her and repeatedly beat her until she told him what he wanted to hear.
Kellik was soon confronted by a team of Republic operatives

Republic Operatives Organization Temporary Unions

, who were sent

Hail the Liberators Event Cold War (3653BBY - 3642BBY)

by Qo'el's father, Odar

Odar (Human) Character Minor Characters (Cold War era)

, having been told that his daughter was taken without cause. Kellik attempted to justify his actions, claiming that the courts didn't have the time to deal with every separatist sympathizer, which he believed granted him leeway.
Kellik then offered the operatives a more subtle way to get information on the separatists, offering Qo'el's ring with a listening device implanted inside and instructed them to return to it Odar and claim that it's the only thing of his daughter's they could find - that way he hoped they would get all the information about separatists they needed. However, his offer was refused and as Republic operatives drew their blasters, Kellik, unwilling to get in a shootout, agreed to surrender Qo'el, though he contemptuously stated that they were aiding the enemy.
Kellik was a stern and rough soldier, he did not hesitate to use all the means necessary to achieve a result. He was convinced that torture was a legitimate tool of warfare, and if the enemy used something, it justified the Republic's use of the same. From his point of view, saving the Republic and Mantellians lives was paramount, no matter how it was done.