Vox is an egotistical, charismatic, and manipulative showman of an Overlord who craves attention.[7] To the public, Vox presents himself as a legitimate businessman of VoxTek Enterprises, giving the facade of a man of the people to the denizens of Hell, when in truth, he is power-hungry, and he manipulates their minds to boost his reputation. He is very intelligent and technology-savvy, and he is always keeping up with the latest trends and technology.[8] He seems to be able to hide his less desirable side in public and even in private unless he's pushed to far.

Despite his egocentric nature, Vox is loyal to the interests of his fellow Overlords and seeks to maintain their collective image of power. As the most level-headed member, Vox often acts as the de facto leader of the Vees. Claiming the Vees' brand to be "perfection", he is often frustrated or outright angered if someone can jeopardize it, such as when he reigns in his fellow Vee, Valentino, from attacking the Hazbin Hotel in response to Angel Dust living there. Another element that earns his ire is his rival, Alastor, whom he utterly despises and might be intimidated by as he sees Alastor as a threat to his plans. However, despite his immense hatred for Alastor, Vox doesn't let it override his more pragmatic side. He fully knows Alastor's power and doesn't risk underestimating him.