Blitzo is a bombastic, big-talking, and sardonic imp. He is high energy and career-focused, having recently started his own company, something that's noted to be rare for an imp to achieve.

He is very invested in the company's success and willing to make many personal sacrifices to achieve it. However, despite his enthusiasm to break out of the lowly social position his species is assigned in Hell. He is also, in many ways, wildly unprofessional and scattershot in his methods.

Despite his status as his company's sole director, he can frequently behave in ways that are immature, self-absorbed, and even disrespectful towards his employees, affecting their level of respect for him.

He is also willing to be manipulative in some questionable ways, sleeping with the married Stolas, initially in order to "borrow" his grimoire, the key element allowing him and his employees to fulfil contracts to assassinate people on Earth.

Underneath Blitzo's powerful drive to succeed at all costs, however, is an emotionally troubled imp, one who is dealing with the repercussions of a checkered past, that has left many people he once knew, and is implied to have cared for, hurt and actively bitter towards him. Deep down, covered by his bluster, Blitzo is haunted by these ghosts and makes a habit of running from, rather than facing, his current problems in reaction.