Warren (also using the alias Warlock) is the ultimate pickpocket, master of discretion, he never got caught for stealing, no matter the importance of the object. Warlock is a sarcastic and brutal guy, acting tough around everyone. His directness sometimes hurts others but he never means to. Sometimes he has a hard time with words and resorts to violence as the only way to express himself. He’s got a tough shell and rarely gets affected by other’s words.

Appart from having a pretty low voice, I don't have much expectations for his voice. If I had to give a reference it would be Capsaicin Cookie from Cookie Run Kingdom but my mind isn't set on that one, here's an exemple : https://www.youtube.com/watch?v=ZJjK9SPDj5I&ab_channel=Jonooit