Harvey Charles Furniss - Watchmen (1986)

A citizen living in New York, Harvey Charles Furniss was a multiple time rapist that had managed to avoid being arrested by the N.Y.P.D.

At some point in time, he became an enemy of Rorschach, who beat him to death and left his body outside of the Police Headquarters with a note saying "never" tied to his chest, both as an act of his brand of justice and a defiant direct response to the '77 Keene Act's proposal for compulsory retirement of all costumed adventurers who didn't have the backing of the US Government. 

Jimmy the Gimmick - Watchmen (1989)

A costumed criminal in New York City during the career of Nite Owl, Jimmy the Gimmick fought Hollis Mason and other masked adventurers several times.

During one his numerous times in prison, Edgar William Jacobi - formerly Moloch the Mystic - was suspected to have made acquaintances with him, leading Rorschach to suspect that Gimmick had something to do with both the death of The Comedian and the attempted assassination of Adrian Veidt.

Captain Axis - Watchmen (1986)

The alter-ego of Hans von Krupp, Captain Axis was an enemy of the Minutemen during the second World War, running missions of espionage and sabotage in America.

He was once flawed by a left hook from Nite Owl I during an encounter.

In 1945, whilst fighting Hooded Justice on an Allied submarine that was sailing near the Arctic Circle, Axis was flung into the sea, leaving him to drown, die of hypothermia or both.

However, how much of this can be backed up by official criminal records remains at the moment unknown.

Underboss - Watchmen (1986)

Taking up the alias of the Underboss, the New York criminal was responsible for creating an army out of the homeless living in the subway system beneath the city. He had fought against Nite Owl and other costumed adventurers, leading to his arrest.

According to some his real name was Anthony Rizzoli, and was a much-feared American crime boss. In 1965, his operations were disrupted by Nite Owl ii and Rorschach working together, eventually being arrested by the pair 1968.

Whilst in custody, he was supposed to have met Moloch the Mystic, which would lead him to become a suspect in a private investigation being headed by Rorschach in 1985 following the death of the Comedian.

One source said he was murdered in prison at some point after 1985.

King of Skin - Watchmen (1986)

A costumed criminal and adversary of the Crimebusters, the King of Skin were one of the many still living criminals that Rorschach suspected was responsible for killing the Comedian Edward Blake, as well as hiring Roy Victor Chess to assassinate Adrian Veidt.

Screaming Skull - Watchmen (1986)

A former criminal operating in the 1940s, the Screaming Skull was an enemy of Nite Owl I, being constantly foiled and arrested for his crimes. After at least a dozen times in jail, he eventually reformed and gave up the mantle.

Turning to Christianity following his release from prison, he settled down in New York City with a wife and two kids.

Whilst out shopping, he ran into Hollis Mason – the retired Nite Owl – and got chatting, trading addresses with one another and laughing about the old days.

Captain Carnage - Watchmen (1986)

An unnamed masochist from New York, Captain Carnage was a costumed villain created for the sole purpose of getting sexual relief from being beaten up.

Committing a robbery from a jewellery store, he was confronted by Silk Spectre, who at first was unaware of what was going on. Due to his increased breathing, she believed he may have been suffering from an asthma attack.

Due to the close-knit nature of the New York crime fighters, his schemes were largely ignored by the heroes who didn't even bother to do anything about him, aware he was not committing any crimes of significance that would hurt others. On one occasion Nite Owl ii even told him to "get lost" after he shouted after him in the street in broad daylight begging to be punished.

However, Carnage's attempt on Rorschach did not go the same way, with the vigilante dropping him down an elevator shaft.

Twilight Lady - Watchmen (1986)

The alter-ego of Leslie Chadwicke, - according to one source with questioning validity - Twilight Lady was a costumed criminal operating in the '60s, seeing it as a method to relieve herself of the boredom she was feeling in her life. Over the years her crimes developed from harmless to the creation of an illegal brothel and drug ring.

She was arrested in 1968 by Nite Owl and remained there until eventually being released in 1970

At some point in time, Twilight Lady sent Nite Owl a signed provocative picture of herself along with a message wishing him love; something Nite Owl kept as a trophy to remember her by after she disappeared.

Senator Keene - Watchmen (1986)

An American politician and elected representative of the Senate, Senator Keene proposed for the passing of a bill that would regulate the presence of masked vigilantes in America and forcibly retire any that do not have the approval of the American Government.

In 1977, after numerous police strikes and riots, the Keene Act was eventually passed, leading to the retirement of both Nite Owl and Silk Spectre, as well as Rorschach becoming a wanted criminal by the N.Y.P.D.