Considered a liability due to his violent nature and amoral personality, this rejection turned Macendale to a career mercenary and ultimately a costumed terrorist.

He adopted the Jack O'Lantern alter ego, engaging in combat with Machine Man as his first opponent[3] followed by Spider-Man for the first time.

[4][5][6] Macendale was later hired to retrieve the Hobgoblin's lost battle van, pulling off the mission successfully despite Spider-Man's untimely appearance.

[9] When the Kingpin temporarily abdicated being the organized crime's head on the eastern seaboard and a resulting gang war tore New York City apart, Macendale wished to increase his underworld status and formed an alliance with the Hobgoblin.

After his co-conspirator's supposed death, all known copies of Goblin weapons and costumes were handed over to Macendale who took over the Hobgoblin identity to steal notoriety within the supervillain community.

With his demonic powers, Macendale defeated Spider-Man easily but Mary Jane Watson intervened before he could deliver the killing blow.

[4][18] Having finally been made into the notorious supervillain he hoped to be at the cost of his humanity, Macendale put his personal enmity for Spider-Man aside and used his demonic powers to be a top contract killer.

[21] Macendale was later stiff-armed by Doctor Octopus into joining the Sinister Six's second incarnation which twice tried to take over the world, failing due to counter measures by Spider-Man, Hulk, Ghost Rider, the Fantastic Four and many more heroes.

[31] Macendale obtained Kraven the Hunter's strength formula, which enabled him to easily defeat his demonic doppelganger Demogoblin who then died saving a young child in battle.

[33] Considered "just a criminal" by Spider-Man, Macendale was viewed as a typical (sociopathic) thug who is not much of a threat as his predecessor and Norman Osborn in comparison.

[34] Macendale went on trial for his many crimes and found guilty on several counts (including convictions for the original Hobgoblin's acts), disgustingly responding by revealing that Leeds was his predecessor.

His continued testimony leads Spider-Man recounting encounters with the original Hobgoblin, and thus realized that Ned cannot possibly be the supervillain due to lack of powers (despite being killed when Macendale paid the Foreigner).

; this individual used several false aliases including Jason Macendale, Maguire Beck (Mysterio's cousin), and Mad Jack (Daniel Berkhart).

This version of the character was subjected to much controversy, due to the fact that several years after his introduction he was rebranded "Mad Jack" and was heavily featured in the pages of The Spectacular Spider-Man during the late 1990s.

Mad Jack was ultimately revealed to be the duo of Daniel Berkhart (ex-Mysterio) and Maguire Beck (Mysterio's cousin).

[38] With Blackwing, he was then admitted as a provisional member of the loosely knit band of the Red Skull's operatives called the Skeleton Crew.

He was later seen on Pluto's jury (alongside Abomination, Armless Tiger Man, Artume, Heinrich Zemo, Commander Kraken, Iron Monger, Kyknos, Nessus, Orka, Scourge of the Underworld, and Veranke) for Zeus' trial.

[47] Jack O'Lantern later battled Deadpool after stealing 20 million dollars from the Queen Kathleen gambling ship owned by Tombstone.

Under Osborn's orders, Berkhart kidnapped John Jameson and exposed to mind-altering chemicals to be turned into a mind controlled pawn: the super-powered wolf alter-ego persona Man-Wolf.

[54] Another version of Jack O'Lantern is introduced during the "Dark Reign" storyline, is an unnamed man who claimed to be Steve Levins' brother.

[4] He was later released by a lawyer sent by Norman Osborn who claimed that Jack O'Lantern is a material witness to a national security case.

[60] While it hasn't been confirmed, this depiction claims to have killed every other person to go by the Jack O'Lantern name in an effort to "clean up the brand".

During the fight, Megatak assists Jack O'Lantern and punches Venom's phone before he can make a call to the Avengers for help.

[73] During the "Secret Empire" storyline, Jack O'Lantern appears as a member of the Army of Evil where they attack Manhattan in retaliation for what happened at Pleasant Hill.

During the time in which a demon was grafted to him, he had superhuman strength, speed, and agility, as well as hellfire powers enabling him to create weapons and gliders at will.

When he adopted the Hobgoblin persona, he was able to make improvements to the Goblin glider's maneuverability by utilizing skills he gained from his master's degrees in both mechanical engineering and physics.

Levins wore a complete body armor made of metal-mesh covered in multi-segmented Kevlar panels, incorporating a rigid, articulated shell which can resist a 7-pound bazooka anti-tank warhead.

Levins rides atop a one-man hovercraft with an electric motor powered by a high density lithium rechargeable battery.

event, Jack O'Lantern launched a scheme to bring about a hell on Earth and take over the world with the proper alignment of cosmos.

[88] The demonic version of Jason Macendale appears in the Spider-Man Classics line, which was later reworked for Marvel Legends' "Sinister Six" set and repainted as a Demogoblin figure.