Hackett is a former pilot of the Royal Air Force who later became a henchman of the heroin manufacturer China White.
In flashbacks, Dave accompanied Robert on his yacht, the Queen's Gambit, as part of a business trip to China.
Sebastian Hady was the corrupt mayor of Gotham City, associated with Carmine Falcone, and eventually killed by the League of Shadows.
When the circus came to Gotham City, Haly was confronted by Tony Zucco, who demanded protection money and murdered Dick's parents after he refused.
Created by writer Peter David and artist Todd Nauck, he first appeared in Young Justice #4 (January 1999).
The character is the brother and killer of Greta Hayes / Secret, and possesses superhuman physical attributes and illusion-casting abilities derived from a deal with the demon Buzz.
In the mainstream comic universe, Hauhet makes a brief appearance, the aforementioned event taking place years after; she is revealed to be the entity responsible for sending visions to Khalid Nassour, depicting the fall of the Tower of Fate through the machinations of Merlin and Arion.
Upon further study, Khalid also learns that Merlin will bargain a deal with Jason Blood, in which will lead to him betraying Justice League Dark and himself despite insisting otherwise.
Within the context of the stories, the Head is stranded on Earth after a failed plot by the microscopic alien race the Waiting to conquer it.
The Headhunter is a mercenary and nemesis of Batman who is hired by criminal Vincent Morelli to kill Commissioner Gordon.
A former Marine, McShane is assigned to catch Catwoman by Gordon, but falls for her leading to her rejecting him once he knows her true identity.
An original incarnation of the Headhunter named Wendell appears in the Gotham episode "A Day in the Narrows", portrayed by Kyle Terry.
Detective-Sergeant Henderson visited Smallville in an attempt to convince Superboy to relocate to Metropolis, where the rate and volume of crime was much higher.
Since John Byrne's 1986 Man of Steel miniseries, Inspector Henderson's role has been reduced somewhat, in favor of newer characters Dan Turpin and Maggie Sawyer.
Devastated by the events and blamed for the murders, John forged two iron sledgehammers, donned an executioner's hood, and became a vigilante before eventually being captured and killed.
[9] John Henry Jr. was among the 13 missing Golden Age superheroes that were returned to their own time when the pods they are in failed causing history to be rewritten around them.
[36] He would later be revealed to be a genetically modified adult clone of Damian Wayne created by Talia al Ghul.
[38] Later, Heretic returns under the title of "The Other" having claimed a League of Assassins Lazarus Pit from the previous owner.
[42][43] In The New Golden Age, Hughes is reimagined as Doctor Elemental, a supervillain and member of the Injustice Society who wields element-manipulating armor.
He has no superhuman powers, but can fly using an advanced jet-pack—he wears a cannonball-shaped helmet to allow him to crash into his targets head-on.
She joined the Peace Corps as a result of relational issues with her father and was turned into a werehyena after an accident in Africa.
Taking the name the Hyena, Summer returned to America and began attacking both criminals and police officers.
[47] The second Hyena, Jivan Shi, was a psychiatrist whom Summer Day had fallen in love with while he was attempting to treat her werehyena condition.
[48] According to The Fury of Firestorm #10–13, the madness suffered by the werehyenas is one's bestial side taking over, coupled with an exaggeration of negative emotions.
[52] In Forever Evil, the Summer Day incarnation of Hyena appears as a member of the Secret Society of Super Villains.