Blitzo

Blitzo is one of the main villain protagonists of "Helluva Boss", a spin-off series set in the same universe as Hazbin Hotel.

History
Blitzo formed the I.M.P (Immediate Murder Professionals) after managing to obtain access to Earth via Stolas' book, though in the process he had to sleep with the Overlord and has since regretted this incident as Stolas continually harasses him as a result.

Bitzo sees himself as a father figure more than a true boss but also uses this position to justify not actually taking things as serious as he should and thus he is generally an extremely terrible leader, more prone to discussing if his outfit looks good than actually getting productive work done.

Blitzo has an unhealthy obsession with Moxxie and Millie, to the point he literally stalks the pair day and night - Millie somewhat encourages this behavior but Moxxie continually calls Blitzo out for this, which just makes Blitzo more determined to torment Moxxie in turn.

He is protective of Loona despite the fact Loona is almost as bad at her job as he is, claiming she's part of a family and for all intents and purposes she is his adoptive daughter.

Blitzo has a strange system of questionable ethics (that can be tossed away on a whim), as was seen in the pilot when he and the others went to great lengths to save a child they accidently sniped, only for Blitzo to actually be happy when it was revealed the child was their target all along (mostly because said child went on a vulgar rampage, calling Blitzo a "selfish, greedy clown").

Trivia

 * Blitzo's name is pronounced "Blitz" (the "o" is silent).
 * Blitzo, unlike most of the Hazbin Hotel cast, is likely born a resident of Hell and thus a true demon.
 * as an imp Blitzo, Moxxie and Millie are considered the lowest of Hell's residents, which may explain his desire for fame and power.