A daring chase for the ghost boy results in Skulker taking Tucker's PDA to power up his suit, only for him to stick with Danny's schedule that takes control over his armor.
However, he still pursues Danny to the Amity Park Zoo where he nearly kills Danny until Danny summons the purple-back gorilla to attack Skulker, his battle suit damaged and revealing the wearer: a tiny little green ghost blob controlling the suit from its head. In the end, Danny captures him with the Fenton Thermos.
Although he plans to get more revenge on Danny, he's commanded to leave on Vlad's behalf. Also, the PDA from the previous episode is still stuck to him and still unprogrammable.
Walker had taken away Skulker's weapons so he could not escape, so instead, Skulker steals one of the weapons from a ghost cop to use.
In "Life Lessons," Skulker, now free of the PDA, witnesses Danny and Valerie fighting. Seeing both's worth, he hosts a contest to find out who can survive against the other long enough to be worthy to hunt.
At the Nasty Burger, Skulker uses the Box Ghost as bait, but after a brief confrontation, both enemies leave so they won't cause any more harm.
In Valerie's apartment, he gives the flour sack to Danny, which causes Valerie to hunt him. But when Danny gives her back the sack, Skulker, impatient from the lack of a winner, decides to capture both of them, taking them to his lair.
In the end, Danny and Valerie team up to defeat him, and Skulker gets paralyzed by his own darts.
Afterwards he and Danny fight at the store that Skulker took over until, with Sidney's convincing, he relates the story of Pariah to Danny before ultimately rounding up various ghosts to help Danny fight off Pariah Dark later
Later in "Identity Crisis," Danny, Sam, and Tucker check out Skulker's file on the Fenton computer, hinting Danny might have fought with him since he mentioned sending the hunter back to the Ghost Zone.
To their misfortune, though, the PDA's influence is on them once again.
In "Secret Weapons," Vlad hires Skulker again to scrounge around Amity Park for various devices, namely bloodstream nanobots from Axion Labs and the Fenton's new "Ecto-Converter" device.
Although Danny tries to stop him, his well-meaning but inexperienced sister Jazz keeps tripping him up and letting "Ghost-X" (what Jazz knows Skulker as) get away.
The next day, Danny, thinking Jazz went after Skulker, runs into Skulker in the Ghost Zone just as the hunter finishes "borrowing" Technus's Electro-Rod weapon. Taking advantage of the chance encounter, Skulker captures Danny and takes him to Vlad.
In "The Fright Before Christmas," Skulker is one of the many ghosts to uphold the law of being friendly towards others during Christmas time, later helping Danny stop the Ghostwriter and restore Christmas to normal.
Skulker also had a starring role in the episode "Micro Management." Skulker, armed with a new suit, begins to hunt Danny again while the young hero is busy trying to put up with his "fitness buddy" Dash.
However, the three of them wind up getting shrunk when Jack Fenton tries to test out his new "Fenton Ghost Crammer." As a result of being shrunk, Skulker is unable to use his ghost powers, but he is still able to use his weapon-laden suit.
In his attempts to squash Danny, Skulker follows him and Dash throughout the Fenton household and all the way into the rooftop Op's Center, where Skulker winds up in the center's freezer.
The cold traps Skulker in ice and ultimately gets him consumed by Jack Fenton, who puts the frozen hunting ghost into his root beer float.
In "Double Cross My Heart," Skulker briefly makes another appearance (now free from Jack Fenton, in his normal size, and back in his old suit) while he is confronted by the Guys in White while hunting one of their decoy ghosts.
When the Guys in White catch Skulker, he escapes by ejecting from his battlesuit, which the agents use to help receive information on Danny. Note that this is the first time since Skulker's premier episode that he leaves his battlesuit.
In "Kindred Spirits," Skulker makes a cameo appearance in a flashback stealing money from a molasses factory and then attacking Danny and his friends.
In "Girls' Night Out," he's Ember McLain's boyfriend and - because she criticized his hunting skills - tries to catch Danny to impress her, only to be defeated by Jack Fenton, whose competence as ghost hunter arises when his family is in danger.
In "Boxed Up Fury," Danny rescues Skulker from three unicorns that the Box Ghost released to destroy him for revenge. He, in return, helps Danny out by telling him how to find Pandora so he can stop the madness the Box Ghost has caused.
Skulker's final appearance was in the series finale, "Phantom Planet." He serves as the mouthpiece and de facto leader for the other inhabitants of the Ghost Zone, driving Danny away when he came seeking the help of the Ghost Zone's residents.
Seeking aid for turning the planet intangible to avoid an asteroid strike that would destroy both Earth and the Ghost Zone, powerless Danny gets caught by Skulker while trying to persuade them to help him.
Skulker and other ghosts blast him, awakening the dormant powers in Danny's white streak of hair and allowing him to transform again. Warning the ghosts about their mistake, Danny drives them off with his Ghostly Wail.
Danny eventually returns to the Ghost Zone and begins catching ghosts against their will to help.
Skulker frees them and leads a gang-up on Danny, but the young ghost fighter eventually convinces his enemies to help. The ghosts succeed in turning the entire planet intangible, saving it and the Ghost Zone from destruction.
With the crisis averted, Danny thanks Skulker, but the hunter only promises that Danny is still his prey - and now that he has saved a whole planet, he is a much more valuable prize. They part ways amiably, however.
In his true form, Skulker is a tiny green blob with a face, red eyes, and limbs.
Skulker normally wears a weaponized robotic suit. In this form, he has electric green eyes, electric green flaming hair and goatee, and jagged teeth.
The "skin" of his suit is an off-white and his arms have metal seams. He wears a black tank top and pants, a dark gray shoulder guard on his left shoulder, and a dark gray belt that slings across his chest.
Skulker also wears dark gray gauntlets that have technological features in the wrists, along with a gray utility belt that has a blue "S" on the buckle.
He wears gray boots with blue laces and a necklace with a white skull on it. Over the series, Skulker's suit gets several technological upgrades and new weapons.
A rather confident yet callous ghost, Skulker is persistent and determined in his quest to hunt down rare ghosts for his growing collection, Danny included.
Because of that, Skulker has become one of Danny's frequent enemies, a murderous, sadistic, greedy, and ruthless hunter to the very core, Skulker enjoys a good hunt with good prey as a prize, so much that he would often offer his targets a head start in their escape, just so he could relish the hunt even longer.
Knowledgeable in the ways of the hunt and often blunt and arrogant (he has a habit of calling Danny "whelp," or "ghost child," Skulker, at rare times, has a bit of a lighthearted side, appreciating Danny's compliment on his new weapon in "Bitter Reunions," for example. Should a major issue ever arise, it can be expected that Skulker eventually teams up with Danny to fight off the big threat.
He sees Danny as nothing more than an exotic creature that needs to be hunted down. Skulker is determined to eventually kill Danny and "put [his] pelt at the foot of [his] bed."
Despite his obsession to hunt Danny, they are often forced to work together when a much bigger threat comes up. This has caused Skulker to also view Danny as an occasional ally. Due to the hunter's persistent nature, it is likely he won't rest until he wins the hunt.
Skulker's relationship with the other half ghost is less strained than with Danny. Rather than hunt him, he acts as a frequent hired helper; he works for Vlad who in exchange rewards him, possibly with equipment and/or other items.
In "Girls Night Out," it was revealed that the two were dating. Skulker's relationship with Ember is not very stable, since she often insulted his ghost hunting skills.
He does show some level of love towards her, working hard to try and hunt Danny down in order to impress her.
Although dating, the two have hardly interacted in previous episodes and they weren't seen together in "Girls Night Out."
In the alternative future in "The Ultimate Enemy," Skulker and Technus had merged into a single entity known as Skultech 9.9. Despite being stronger as a fused entity, they sometimes have problems cooperating with each other.
Skulker has no respect towards him, having used him twice as bait, and clearly viewing him as an annoyance. The tables were turned at one point, though, when the Box Ghost gets payback in "Boxed Up Fury."
The nerdy ghost acted as the voice of reason around Skulker during the events of "Reign Storm" by trying to get him to calm down, to which Skulker responded by pinning Poindexter to the wall with a crossbow.
Powers and Abilities
- Robotic Suit: Skulker has ghost powers (Invisibility, Flight, Intangibility, and Overshadowing). As evidenced in "Micro-Management," however, he doesn't often rely on them, preferring instead to use the various weaponry embedded in his suit, however he is shown to go invisible and intangible a lot, and even though he can fly he uses a Jet Pack on his suit, possibly to enhance his speed. The suit can also grant him extra strength, stamina, endurance, and durability. The Suit has a weapon system of Missile Launchers, Ecto Energy Flail, Hook, and Blade, Shoulder Mounted Laser Cannons, Ghost Shield, and can fire blue Ghost Ray.
- Hunting Intuition: His suit makes him the greatest hunter ever. He possesses extraordinary talent and instinct in/for hunting all things. He can track anything under any conditions, sense the weaknesses of his prey and exploit them and finally kill or capture his prey.
- Detachable Head: In Girl's Night Out, Skulker head is shown to be detachable.
- Ghost Power Weakening(briefly): In "Life Lessons", Skulker shocks Valerie and Danny unconscious by activating a bunch of devices that zaps them, and had placed a ghost power cuff on them, so he could hunt them both at the same time, to disable Danny's powers.
- Apportation: In "Life Lessons", Skulker apported to himself a cage with captured ghosts, and used one of them as a trap for Danny.
- Retractable Blades: Skulker's suit includes retractable blades, as shown in "Bitter Reunions," Danny referred it as a glowing blade.
- Hacking: As Skulker is just a tiny ghost in a robotic suit that is easy to hack into by means of devices like PDAs, when the suit is compromised, like in "One of a Kind" or "Micro Management", Skulker is left helpless. In "The Ultimate Enemy", Skulktech is still susceptible to being hacked. Tucker exploited this weakness to try to force him to be bound by the schedule Tucker set and used against Skulker in "One of a Kind," which worked until Skulktech countered with their "Purpleback Gorilla Override" program.
- 201. "Memory Blank" (flashback, no lines)
- 204. "Reign Storm"
- 206. "Identity Crisis" (pictured)
- 208. "The Ultimate Enemy" (mentioned)
- 210. "The Fright Before Christmas"
- 211. "Secret Weapons"
- 213. "Micro Management"
- 217. "Kindred Spirits" (flashback, no lines)
- 218. "Double Cross My Heart"
In the series, it was established that Skulker's true form is a small ghost and that his frame is merely an exo-suit. However in the 10 years later series, his ghostly form is the same build as the exo-suit. This may be because ghosts can morph their form, and so Skulker may have morphed his base form into a larger ghost, ditching the exo-suit in exchange for a larger build. All versions of Skulker in the 10 years later series show him without his ecto-suit, and either with a motorcycle or stylized like a biker. The biker persona is because Hartman has stated that he always saw Skulker as a biker-type of character. And so this is seen in his 10 years later stylization.
This first version of Skulker 10 years later shows him haggard and worn down from his many years of hunting. He is still a well-built character, but instead of an ecto-suit he is more muscular. His clothes are worn down and tattered. His overall build is more human-like, more muscular, and his face resembling more of a skull than in his original character design.
Hartman has stated that Skulker strikes him as a biker type of character. To go with this theme, the second 10 years later version of Skulker rides a motorcycle. This version is essentially an "old biker dude." In this version his ecto-suit is gone and he is mostly bones. It is unexplained how this would fit together with his true form being a small blob, though likely it would be that he changed his form as Hartman has said multiple times in the 10 years older videos that ghosts can change their form. Even though he doesn't have a suit, he has his motorcycle which has a lot of powers itself, possibly powered from the same source as his green hair. This character design is similar to/inspired by Ghost Rider.
This version appears to be a combination of the first two. His overall form is human-like, but it is mostly skin and bones. This version is a more fierce, evil, enraged Skulker.
In the fourth and final version, Skulker appears to be a mixture of the second design with his original character design, although less mechanical and more human/body-type. He is a biker, akin to Ghost Rider. At some point in the past 10 years he lost an eye. His weapon is a hook, or any sharp thing he can find, although it is likely that the hook is his primary weapon. It is possible that he uses the hook to latch on to his enemies and drag them behind his bike. This implies that ghosts cannot phase out of the hook, similar to many of Skulker's weapons seen in the series. This 10 years later Skulker is a formidable and dangerous enemy.
- Skulker has teamed up with Danny numerous times, despite primarily being an antagonist.
- It is revealed in "Girls' Night Out" that Ember McLain is his girlfriend.
- Skulker may be inspired by the Marvel villain Kraven the Hunter, a big game hunter who became obsessed with hunting Spider-Man.
- Skulker's true form was seen three times during the course of the series, first in his debut "One of a Kind", then in "Double Cross My Heart", and lastly in "Girls' Night Out".
- In two out of the three times, his Ecto-Skeleton was destroyed when he was seen in his true form.
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