He was created by writer Warren Ellis and artist Darick Roberston.

Jerusalem has a hatred for authority, political corruption and dogs.

He is almost never without his iconic sunglasses that have one red lens and the other green--often times different shapes.

After five years of retirement and hermit-ing in the mountains outside the city, he returned to it. He took up work as an urban journalist and found himself battling corruption at the highest level.

Within his society many people are resistant or immune to many forms of drug addiction, which is part of why he uses an extensive amount of drugs. His drug abuse of is one of his most apparent character traits that he makes no attempt to conceal.

He has a quick temper, combines curse words with other words to form new insults and displays violent outbursts that often lead to physical assault. Despite his violent nature he is shown to treat innocents, especially children, with kindness and care.

As a journalist he is a firm believer in the truth and tries to direct the information in the bluntest manner so there is no confusion.

He is generally heavily armed. Jerusalem has been shown with several different kinds of firearms, and one in particular called “The Upper Hand” is capable of blowing up a vehicle.

His character is said to have been inspired by the journalists H. L. Mencken and Hunter S. Thompson.