Vox

Vox is a character in Hazbin Hotel and is one of the major antagonists in the series.

Background
Not much is known about Vox other than he is one of the most powerful demons in Hell. He makes a cameo in the pilot where he is seen alongside Valentino and another warlord demon, who takes a selfie with him, hiding inside Valentino's Porn Studio after the Extermination has ended.

Trivia

 * Vivienne and Hazbin writer Dave Capdevielle confirmed in Viv's Vivzie Stream #9 live stream that Vox is one of the bigger antagonists/villains in the series. Dave also said that he was the one who named Vox and won't tell fans where the name came or derived from.