This article discusses content originating from the video game Haunt and thus is confirmed to be fictional.
Characters and organizations discussed are either entirely fictitious or are portrayed by voice actors/actors.
Mark Slender


Slender Man (mistaken)


Mutated/Deformed Human


Haunt, Haunted Memories

Mark Slender, is an individual from the games Haunt and Haunted Memories and is one of the most divergent and interesting takes on the entity.


Mark Slender, from what can be gathered from the game Haunt, was a reporter or journalist of some persuasion for an unknown company. Slender had been sent to a location with several others to report suspicious activity at a power plant out in a forest. Upon arrival and during investigation, Slender and his team were marked for termination, as the power plant had been commissioned by the Nazis for producing an experimental substance.

Slender and co had discovered this function, as well as the nearby death camp. In order to keep their secrets safe, the Nazis terminated the investigation crew. Slender had managed to escape from the Waffen SS, and hid inside of a bunker. The SS decided it would be easier just to burn him alive, and set the bunker aflame.

Unfortunately, the chemicals inside the bunker caused a bizarre reaction to Slender, and as a result, Slender became a paranormal entity. He then proceeded to attack the facility and couldn't appear to be stopped.

Decades later, your character happens upon a car sitting outside the fence to the area. The car still running, it was recently abandoned. At this point, the character is attacked and hunted by Mark Slender.


Mark Slender's face after getting burned alive.

Slender is a very different take on the entity of Slender Man, and is easily the most divergent of all incarnations of him.

Slender is considered to be some sort of spirit, and moves as such. He is capable of moving through solid objects and walls, and appears to "glide" above the ground very quickly in fast spurts. Unlike other incarnations of Slender Man, Slender does cause electrical interference, but does not appear to cause any serious problems with an individual's memory, although he does appear to be capable of causing an individual to be moved backwards several moments as if they didn't really move from their position but their own perception tells them they did, only to realize they never moved.

Slender is also very bright, lighting up brightly against the darkness. This, coupled with an odd electrical discharge that makes a very audible noise, makes his presence incredibly easy to spot. Escaping him, however, is another matter. Slender chases a target, and, while not as fast as Slender Man, does move a lot. He will actively glide towards and chase his targets whether they are directly perceiving him or not. Slender is very persistent, and will chase his targets for extended periods, showing that his stamina is either infinite, or he is simply augmented by his chemical "death".

Slender is called a spirit, and the paranormal difficulty setting infers this idea, but Slender's actual condition is uncertain. Since he was bathed in chemicals, hundreds of potential possibilities exist and are, but not limited to

  • A superhuman
  • A specter/spectre
  • A mutant
  • A hybrid
  • An undead monster

Considering that he is considered a paranormal spirit, his abilities, and the fact that he most likely was killed when the bunker was set on fire, the most likely explanation is that Slender is some form of undead, likely a specter, wraith, or some other undead being. Mark Slender is very unpredictable, and seems to always be capable of discerning the player's location, to which he will aggressively charge the player. If the player manages to somehow find an escape from Slender, he will inevitably find and chase him again. In the new version of Haunt when the player encounters Slender he will appear to be crouch down as if he's waiting for the player, and when the player gets close enough Slender will instantly stand up with his arms and tentacles stretched out.

Similarities and Differences To Slender Man

Mark Slender and Slender Man both have various traits that show similarities, but also many differences between the two entities.

Mark Slender Slender Man
Both, when viewed in photos or in person, exhibit no facial features.
Both have the word "Slender," in their names.
Both seem to be incapable of speech.
Both cause electrical interference.
Both appear to be capable of teleportation.
Both are shown to be very aggressive towards others.
Both can generate tentacles/limbs from their backs.
He has a mouth and an old photograph of him shows he has teeth (assumed to be the only facial feature left due to the extensive damage implemented by the burns). His face does not possess any facial features at all; facial appearances always reflect what the individual viewing him sees as terrifying.
He is considered an apparition of some kind. He is considered to be a more of a physical entity than a non-physical one.
Wears a striped, twisted suit without a tie. Wears a solid black suit with a tie.
Operates on a different plane of existence. Operates on our plane of existence, but in a different dimension.
Glides above the ground and moves very swiftly. Moves very little, to never at all, especially when being observed.  Many of his movements (if he displays any) are very slow and fluid.
Limited teleportation abilities. Extensive, if not near omnipresent teleportation abilities.
Explicitly has a backstory, explanation, and reason for being a malevolent and destructive entity. Currently has no definite explanation for his existence or behavior, and every medium depicting him either doesn't explain it fully or has a self-contained explanation that only works for that medium.


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