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Listen, Jeff... It's not that I don't like you, it's that... I HATE you! You're the bane of my existence and I would love to kill you. But since I'm in a hurry, about if I buy you a new game, would you please leave me alone?
~ Slendy to Jeff.

Slenderman (or "Slendy") is one of the secondary "protagonists" of Pastamonsters. He is the rich, aristocratic boss of JeffBEN well as Operator of the Proxies.

Coming from a generation of several monsters similar to him, the Slenderman is the son of the Lord of the Pit, Zalgo. He is believed to be a child murderer and a ferocious monster. In actuality, Slenderman claims he actually wants to wipe clean his ancestors’ name and be accepted by other Monsters, although most of his actions suggest otherwise. After he got tired of simply murdering the children he stalked, he began killing the parents who abused their children and take their children so that they can be raised as a Proxy and let their out through brutal murder.


Slenderman was born when Lord Zalgo met a female demon and had casual sex with her. He then, however, left her without making her his queen as he promised. The girl eventually had a baby and sent it to Zalgo under his orders. Zalgo intended to murder the baby and feed it to his Hell-Hounds but the Shadowlurker stopped him, persuading Zalgo that he needed an heir to his throne. With that, Zalgo realized Slenderman might be of use to him and named the baby "Slenderman", and prepared it to rule his throne.

Zalgo would later go on to have four other children, intending to find out which one is the most worthy of the throne. Over a course of two decades, Zalgo would subject his young sons and daughter to horrific abuse, both of the physical and psychological kind. Not long after they are born, Zalgo, in order to put his new initiation to the test, strips his terrified children naked and then dumps them into a pit of hellfire from the Pit, causing them nightmarish agony, searing their skin black and giving them magical tentacles (which were actually the children's rotten flesh.) From this point onwards and for years on for every day of Slenderman's life, Zalgo puts the child through brutal life-or-death training routines, where the slightest deviation means beatings and torture and the other four children die in the brutal courses, leaving Slenderman as the only survivor. One exemplary instance of this was when Zalgo forced the boy to fight a hulking demon henchman whilst he was still a young child, leading to him to be beaten senseless in his ineffectual attempt to attack the demon. In the midst of this routine, the young, inquisitive Slenderman, sneaks away from the battle in tears of pain and finds a portal to the human world. Slenderman stared out into the outside world (which should be noted Zalgo has never let Slenderman venture into). Zalgo sees him gazing longingly outside and seems to comfort him... before grabbing Slenderman by the neck and tossing him to the brutish demon and ordering that Slenderman be brutalized for his brief distraction, watching without a hint of emotion as the demon brutally beats the young boy.

During his teenage years, Slenderman wandered around the Pit, seeing all the enslaved humans and monsters from different worlds forced to Zalgo. The Dark World is riddled with likenesses of Zalgo, and his demonic minions swarm the lands. During this, Slenderman finds that his long-lost mother, like all his other family members, have been put to work in the mines, though she is being tormented by Zalgo's evil minions far more than anyone else. Before the woman is about to be punished via whipping, Slenderman arrives and battles Zalgo's minions. He easily defeats them and frees his mother from his shackles. His mother, Akira, tells her son that Zalgo means to use the riches found in the Pit to strengthen his powers and take over the entire multiverse. Slenderman promises that he will vanquish Zalgo by the power Zalgo bestowed upon him before Akira dies due to starvation.

Zalgo, sensing this, told his henchmen to kill Slenderman but Slenderman fought his way through Zalgo's kingdom, using his father's power. After teleporting to his throne room, he challenged Zalgo for the throne. Zalgo, believing no one could harm him, accepted and they engaged in battle. Zalgo shape-shifts into the form of a large gorilla. Zalgo attacks Slenderman with furious claw swipes and powerful punches, managing to harm the Slenderman's back. But soon enough, Slenderman manages to catch Zalgo's arms with his tentacles, ripping his arms and legs off, forcing Zalgo to morph into a spider. Slenderman states that Zalgo will never be able to defeat one of his own, no matter what form he takes. Zalgo continues to attack with his teeth and sharp arms, but is cut down by Slenderman once again, and is sent tumbling into the darkness of his lair. Zalgo then emerges in the form of a giant squid. He tries to attack with his tentacles, but Slenerman cut his tentacles one by one, eventually taking to higher ground. Zalgo then shape-shifts into the form of a hydra and charges at the prince, who dodges and cuts Zalgo in half with a magical beam, forcing him to shape-shift into a dragon. Slenderman then prepares to finish Zalgo and morphs his tentacles into a sword and pierces Zalgo through the head. Zalgo tumbled to his lair's floor, reduced to the helpless, cowardly shadow he truly is. He looked up at his son and declared, "You might have beaten me now, but I will return in the future stronger than ever". Slenderman exclaims that there is no future for Zalgo, but he disagrees. Zalgo tears a portal to the Dark World through which Slenderman is flung into the distant future, where Zalgo promises they will meet again, but next time he will destroy Slenderman once and for all. However, this inadvertently made Zalgo's predicament worse, as the Monsters, who had been killed and tortured by Zalgo for years, finally found a leader: Slender Man.


Slenderman is a classy, posh, grumpy, hot-tempered, arrogant, classy, sophisticated person. He enjoys easy-living and considers himself a "higher being". He genuinely hates leading the Proxies, but it has made him quite a recognizable figure in the Dark World. He also enjoys the terrifying reputation he has in the Human World. It is implied Slenderman has killed many Proxies for their failures. He has also attempted to kill Jeff and BEN numerous times

He enjoys being left alone in his office, where he usually plays on upper-class instruments, watches old black and white movies, and eats fancy dinners. He hates it when people enter his office. 

Slenderman holds nothing but contempt for lifeforms of any kind, human or monster. He rarely helps anyone without some selfish reason behind it or when his self-preservation kicks in.

He's very arrogant, hard-to-please, snobbish and cruel. He's easily one of the biggest Jerks in the show. He has enslaved his employees, is cruel to Jeff and pretty much every Proxy (even though, as said above, it's not like they don't deserve it time and again), and acts horribly to his adoptive daughter, Ms. P (it's also implied in some episodes that he used to beat her); in addition to abandoning his girlfriend after finding out she was pregnant. He even cured cancer and refused to release it to the public, even after Ms. P made an emotional speech about the ethical ramifications.

In the pilot episodes, he's actually quite a fairly serious, ominous antagonist, lacking a lot of the dark sense of humor that would characterize him later on. In the episodes showing him in the past, his personality is as serious as in the pilot episodes, which indicates that the time skip and his years with Jeff changed him greatly.

Despite being arrogant and haughty, Slenderman's claims of intelligence are, for the most part, completely true. Slenderman always has a strategy for his evil plans, but he fails pretty regularly, whether it be from his own arrogance or his idiot followers. He has, though, planned some very intelligent and cunning schemes, such as planning against Jeff to overthrow him when Jeff became President of the United States. He clearly isn't a dimwit - he did subjugate the Dark World - but he's prone to errors in judgment.

Slenderman also has an underlying racist attitude. He does often target Lara exclusively for being human. He also demonstrates misogynistic traits when taunting Ms. P, ignores Eyeless Jack for being Jewish. Slenderman occasionally shows an ugly homophobic streak as well, calling Ticci Toby a "ponce", BEN a "fairy", and uses terms like "faggot". He calls a black cop "boy", implying racism as well. He also thanked Mr. Widemouth in an audio interview for sending the psychotic mental patients he'd requested, mentioning that the "dribbling monkeys" made for easy brainwashing for the Proxies.

Slenderman is very arrogant and acts like a jerk most of the time. He doesn't care for niceties or even try to soften blows when criticizing other's actions and faults. Though harsh, everything he says is, at least from his available knowledge, completely true. : Whenever he seems to have a remotely soft side, this is always subverted because of his ego and cruelty. In addition to this, Slenderman is a complete hypocrite. He constantly bickers at Jeff and BEN for slacking off and being lazy in general, yet all he does himself half the time is lay by the pool, sleep, and not answer his own mail. He criticizes the Proxies for being childish and uncivilized, while he himself is a psychotic manchild who acts unreasonably cruel if he doesn't get what he wants.

Despite having higher goals and ambitions, Slenderman cannot resist committing unnecessarily cruel and petty acts to people he's already screwed over, often to prove he can or just for a sick kick at their expense. He ends up taking it to stupidity levels as he always backstabs anyone he makes a deal with, just to laugh at their misfortune.

While Slenderman claims to care about children but it's mostly an act to get people to see him less as a monster. In reality, he's a child hater. In addition, considering he killed Death the Kid and, a pre-teen at best, his "friendly" nature towards children is made clear to be null and void. Given his past crimes and ruthlessness, he definitely doesn't care about the age of anyone he harms.

With that said, Slendy does have a soft side, he does protect and care for his henchmen from time to time.

As big of a child-brainwashing sadist he is, the show makes it abundantly clear that he is just as much a victim of Zalgo as anyone else. He was born to the demonic tyrant, who raised him from birth to be how he is, complete with brutal punishments and beatings. He never had any choice from the moment he was born.


  • In Comickit's Halloween photo, where Pastamonsters characters were shown dressed as various monsters during commercial breaks, Slenderman was dressed as what appears to be the Phantom of the Opera.
  • Some people online have stated that Slendys birthday is on October 31st. However, Comickit has unconfirmed this.
  • Within Slenderman's ranks, Slenderman sometimes has different jobs from his regular C.E.O job, usually (and somewhat reluctantly) replacing Jeff as Head Proxy when he is absent.
  • Slenderman says he is allergic to balloons but he has touched balloons in several episodes.
  • Slenderman often mentions the running length of one episode of the show (Thirty minutes), usually in subtle ways.
  • In some episodes, Slenderman reads magazines at his desk. The title varies a lot. Titles include "Work!," “Art," "Proxy Ink" and "Rich People Monthly"
  • It is stated that Slenderman is allergic to blueberries and the color pink.
  • According to Proxy Mansion's tour guide, there are over 5,000 statues of him inside and out of the mansion.
  • Slenderman represents the Deadly Sin of Wrath.
  • Slenderman's favorite music is Classical.
  • Slenderman was originally a looming, ominous antagonist who didn't hesitate to kill Jeff and BEN if they disappointed him. Later he became a depressed, cranky, comical and egocentric grump. Any episode showing him in the past portrays him as being just as serious as his pilot personality, showing that his time with Jeff mellowed him out greatly.
  • Slenderman has murdered hundreds of Proxies in the past.
  • Slenderman's favorite color is black.
  • Slenderman has a net worth of 500$ billion dollars.
  • Slenderman is still a virgin. Despite this, he has a son named Slenderson.
  • He is an implied alcoholic.
  • There is a head in a jar that can be seen in Slenderman's office. 
  • In some episodes, Slenderman actively tries to get rid of and/or kill Jeff and BEN, other times they would come into conflict by sheer chance and he would be happy to ignore the two otherwise.