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Trevor Henderson Wiki
Cryptid Overview

She was on vacation with her husband and they were scoping out graveyards on the way, as you do, when she saw it. Rising out of the old cemetery, big as an old (macabre) telephone pole. Was this some kind of bizarre art piece the authorities hadn't gotten wise to yet? Even as she stepped out of the car, the megaphones on it's "head" screeched to life. "NINE. EIGHTEEN. ONE. CHILD. SEVENTEEN. REMOVE. VILE.". A buzzing, doubled voice screamed random words at her. At this point, it jerked into motion, striding down the hill towards her.
~ The caption of the first original drawing of Siren Head[1]

Siren Head is a fictional-being created by the Canadian artist respectfully known as Trevor Henderson. It is a 12 meters tall humanoid creature with a heavily emaciated, near-skeletal frame covered in dried, mummified flesh with a color similar to rusted metal. emaciated being with a pair of sirens. Capable of emitting various noises both natural and man-made, including sirens, radio broadcasts, white noise, and human voices.


Siren Head is distinctly known for its tall stature (which stands 40-feet tall) and its iconic sirens, which takes the place of its head. This creature is known to be hostile and hunts people as if they were prey, although it usually hangs around in rural towns and wooden areas. The first sighting of it occurred in 1966, when a family on vacation in Arizona Desert, captured an image of Siren Head. However, it is implied heavily that Siren Head has been around since the beginning of mankind, as it appears in cave paintings.

Its limbs are disproportionately long and thin, with arms almost as long as its entire body that ends in huge, bony hands, where a human's head and neck would be is a thin pole of flesh with two sirens attached to them facing in opposite directions (hence its name), and several black wires snaking around its "neck" and into its upper shoulders, pressed against its abdomen. The speakers are fused to the neck by tendrils of skin and capable of swiveling around, much like the head of an owl. Some images depict Siren Head's speakers with toothy, lip-less human-like jaws and a long, retractable thin snake-like tongue, though Henderson has said that the teeth are only visible on a certain radio-frequency.

Some photographs depict Siren Head as having multiple sirens, or having a street lamp in place of its head. Both of these imply that Siren Head either has the ability to change its appearance to better blend in with its surroundings, or that sub-species of Siren Head exist (which, as confirmed by Trevor, are now deceased).

Siren Head isn't a being of our reality, instead Siren Head is much different than us, as it is not limited by our laws of nature. Basically, Siren Head is a constantly changing manifestation, which almost always appears different in the victim’s view of Siren Head. The information changes all knowledge we have on Siren Head, which opens various theories about the creature. It is not known how Siren Head came to have sirens in the distant past before actual sirens were invented.

Trevor has recently revealed many more facts about Siren Head.[2] It is actually the static form of an unfathomable supernatural entity.[2] Despite its lack of eyes, it can still see.[2] It also has the ability to manipulate technology by playing sounds through other devices.[2] It spends most of its time standing still, but it has the ability to move very fast.[2] Victims of Siren Head have apparently been found with their "eyes/eardrums/gums/sinuses burst and bleeding", a description which matches the aftermath of a recent incident where the majority of a town was found killed in this fashion. Weapons such as arrows or spears, basically do not normally work on the entity. It has almost never been spotted in populated areas. Despite the teeth in its speakers, Siren Head does not eat, meaning that it may not actually be a predator in the traditional sense, though there is contradictory evidence in this regard.


The first sighting of Siren Heard occurred in 1966, when a family on vacation in the Arizona Desert captured an image of the creature in a graveyard. Twenty years later, on July 16, 1995, Chad and his friends were hiking in the woods of Tanyard Creek, where they found Siren Head to be lurking. According to Chad, his friends got snatched by something gigantic striding through the trees that mimicked their voices. Chad was found alive with a few injuries, while the friends were gone, either taken or killed by Siren Head. In total, there have been thirteen reports of Siren Head, and all of the stories were released by the victims.


The creeping dread approached the victims as they walked along the alleyway past the town's road.

One example is a photo of Siren Head in Indiana, where citizens started disappearing, and it was seen on the streets in a photo. Although, these incidents are not the first depictions of Siren Head. Ancient rocks paintings of siren Head have been found all over the continent of North America, which indicates that Siren Head is not a new species/creature on earth. There have been also sightings of creatures that resemble Siren Head, but lack similar features.

For example, a photo of Siren Head was released where it appears to have a streetlight for a head, while it is trying to blend in with the other streetlights by standing still. It is very possible that Siren Head has the ability to transform into various urban structures, in order to resemble and lure his victims. However, there are theories that Siren Head is actually a hostile species, that there used to be a lot of creatures similar Siren Head, which are now deceased, and Siren Head is the last remaining member of his species. This is just speculation though, and not confirmed by Trevor yet.

Another possible sighting[3] of Siren Head which is noticeably very different from the usual sightings. The picture appears to show a variation of Siren Head with many more sirens on its neck with about five being visible. The caption also describes how a majority of the population (either of a neighborhood or a small town) were found dead in their homes or on the streets

Behavior and Origins[]

As expected, Siren Head is very a hostile and dangerous creature, as it is known to be very fast and always being camouflaged and hidden. Siren Head is mainly found in rural towns, wooden areas and sometimes in dry forests. The victims of Siren Head are lost travelers, hikers and even children. If the sounds of someone in distress are released, it can be a method of Siren Head trying to lure the victims into the woods. Since Siren Head can blend in very well within trees, people do not notice it. It could make its brutal attack at any time and capture its victims, while the sound of their loved ones talking are being played from Siren Head's sirens.

Trevor has recently posted another drawing of Siren Head along with another concept of Siren Head’s anatomy. He states that he likes the idea that Siren Head’s body is “stuffed full of loose cassette tapes and giant pulsing reel-to-reel tape recorder, connected by organic fibers and veins.” It is possible that these tapes store the various noises that Siren Head broadcasts, however, this has not been confirmed yet. Trevor has also said that is possible that Siren Head “consistently changes” over the years, or that its appearance could somehow be incomprehensible to humans, so our eyes just see the closest approximation to its actual appearance. However, he has yet to confirm either option.

Trevor has responded to an ask on Twitter on how Siren Head could resemble tech from the 90’s or 2000’s in ancient times. Interestingly, he responded with “What we're seeing might be the most recent form, or maybe a slightly outdated form, of something that consistently changes. Maybe our eyes just show us the closest approximation to what's actually there and this ‘fits’.” This could possibly mean that Siren Head changes itself depending on the era it is in in order to blend in more easily, or that what we see is not its real form, but the closest thing the human mind can associate with it.

Hunting Tactics[]

Siren Head hunts by silently standing at Siren Head does to the victims once caught. And it’s hunting tactic can also be throwing shingles into the air Though multiple games were created, and to show off the fact Siren Head was in fact in the environment with the player, one or more corpses are normally found, which may show that Siren Head doesn't always kill for sustenance, even though none of the games were created by Trevor Henderson himself, nor proven to be fact over fiction. Other theories include eating them, or adding them to the roster of voices used by it. Although, Siren Head is not above fooling people with their friends' voices. One sighting suggests that it also blocks out the screams of its devoured victims with other sounds, in order to prevent anyone from coming to the victim's aid. Thus, while weapons are not known to work on Siren Head, its need to conceal its attacks and generally elusive behavior imply that there may be some way of harming it, or at least interrupting its activity. Alternatively, this may be done to ensure a successful hunt by confusing and disorienting the prey, or it might be simple cruelty.

Siren Head mainly uses an ambush strategy to hunting, disguising itself in deep forest or rural areas before attacking its prey. With its sound-based abilities, it can mimic other sounds (music, talking, alerts, sirens, etc.) to lure in prey or drown out someone's cry for help with its sound-based abilities. It is also possible Siren Head can concentrate its sounds into a large sonic blast or a specific tone to take out a large group of people. It is yet unknown what Siren Head does to its caught prey, be it eating them or making them disappear without a trace. When directly seen by an opponent however, it will rush at them seemingly enrage or in a state of bloodlust, and If it is hungry enough, it will use every possible tactical advantage to get its prey.

It has brown mummified skin matching the pattern of rusty metal or tree bark, which it uses for camouflage. Siren Head is also very fast, while on 2 feet, its assumed maximum speed is around 24.3 MPH. While on all fours, its speed is assumed to be a maximum of around 258.2 MPH, making it much faster than the average car. Some people believe Siren Head to use echolocation like bats do to get around in the dark, as seen, Siren Head has no eyes.

Power and abilities[]

  • Acoustikinesis: Can mimic voices. Is implied that it killed some of its victims via blasting their ear drums. Siren Head constantly pumps out sounds, which includes strange music, conversations, angrily shouted words and numbers.
  • Heightened Strength: It is believed that Siren Head is extremely powerful due to its size. Siren Head is able to break down trees or various heavy objects at will. Can kidnap an entire United States family of four at once.[4]
  • Tracking Evasion: Siren Head can blend inside of a forest or behind a tree. It has been known to stand still for days at a time to blend in with its surroundings, its body is infested with parasites, with Trevor mentioning on his Tumblr that Siren Head can cling to ceilings sometimes to make its body blend in with the wires and look like a PA system, stating that he might have used this tactic to take several people in Detroit. Siren Head often uses this ability along with his camoflauge to ambush and kill prey. Trevor also mentioned that Siren Head makes no sound while moving, saying it can be “almost completely silent,[5] with yet another post saying it was able to move when someone’s back was turned without the person knowing.[citation needed]
  • Enhanced Speed: Able to keep pace with a speeding car according to Trevor,[6] a couple reported that Siren Head can be incredibly agile. The couple were driving home, until they saw the graveyard. They ended up checking out the grave, where they saw Siren Head. According to the story, Siren Head started running towards them at an extremely rapid pace.
  • Transformation: It appear to be a shapeshifter, being able to transform its head into functioning sirens and street lights. Trevor mentioned on his Tumblr that Siren Head Was able to copy the appearance of home furnishings and pipes[7] in the walls to kidnap a family of four. Appearance can vary greatly by adapting to its surroundings. It was able to somehow take them from their home in its new form or lure them from without having to enter, as the only sign of their disappearance was the open backyard patio door. The latest sighting shows a multi-headed variation, which could either be a subspecies or the same Siren Head creating more sirens to kill off many more people. In some cases, Siren Head can freely contort its body and remove its head. Trevor’s response to an ask on Twitter also states that it is possible that Siren Head “consistently changes,” or that its appearance could somehow be incomprehensible to humans, so our eyes see the closest approximation to its actual appearance. However, Trevor has left both interpretations open and has not confirmed either.
  • Disguise Mastery: Appearance has been mistaken for trees, and its main form of hiding is using its similar appearance as other objects like telephone poles and lamp posts.
  • Adaptation: Can survive and adapt to different situations to blend in with new environments.
  • Corruption : Can use its sirens to morph humans into mummified corpses and morph them into other iteration of Siren Head.


The Past[]

Siren Head was firstly introduced to the world in 2018, when Trevor Henderson created a Tumblr and Twitter posts, in which he published Siren Head for the first time. On October 31st, 2018, a group of game developers which are known as Modus Interactive, released a horror game for Siren Head, boosting it's popularity even further, and On December 7, 2019, a developer known as Thuleanpaneton, created his own Siren Head horror game too. The video-games highly influenced Siren Head's gain in popularity, it was even proposed to the SCP Foundation, to become a SCP of it's own, but it was declined by the Foundation, and they stated that Siren Head is not an SCP.[8] Any source implying Siren Head to be a SCP is false.

In Popular Culture[]

On April 30th, 2020, a film-creator and a Tik-Tok persona known as Alex Howard, created a video of Siren Head moving around in a background, while at the same time police and gun-fires can be heard. The video got popular very quickly, gaining over 20 million views in one week. The video escalated to the point of getting video-edited. The original background sound got replaces by numerous different songs and audio-clips, making it look like Siren Head is blasting music from it's horns. A good example is the video "Siren Head Gangnam Style" by Largetrap, where Siren Head is seen dancing and playing the infamous song Gangnam Style by PSY.[9]


  • As while Siren Head is NOT an SCP, it amuses people in a scary way, like many SCPs do. Once it was proposed to the SCP Foundation site as the non-canon article. But it got declined.
  • Siren Head's movement is almost “completely silent”.
  • When awake, Siren Head will emit snippets of music, emergency alert messages, air raid sirens, imitations of people's voices, and radio chatter, like a siren would, though it is as of yet unknown whether or not this entity is capable of imitating sounds from other sources.
  • Siren Head may be able to imitate the sounds of local fauna in order to lull prey into a false sense of security by providing ambient background noise. The creator of this entity, Trevor Henderson, stated in a post on Tumblr that Siren Head would use any trick to its advantage if "hungry" enough. This quote also supports the idea that Siren Head may kill out of hunger, not for sport.
  • An image created by the artist behind creations such as Siren Head posted an image with the caption "Siren Head(s)". The photo depicts several different Siren Head-looking creatures in different colors. Despite the implications of this image, the creator, Trevor Henderson, has stated that there is only one Siren Head across all existence[10] which implies that rather than creating other siren heads it absorbs them.[citation needed]
  • When asleep, Siren Head will emit white noise.
  • Then, for some unknown reason, Siren Head is said to be some sort of “ambassador/emissary/hype man for…something else from somewhere else.”[11]
  • Moves like stop-motion animation.
  • Siren Head could tank an attack from a metal baseball bat.
  • It has been previously stated that Siren Head would be left unharmed by an EMP (Electromagnetic Pulse) due to the fact that the majority of its body is organic. It is currently unclear whether or not the presence of an electromagnetic pulse would hinder its ability to vocalize.
  • A group of multiple Siren Heads is called a static.
  • Although Siren Head can be in hazardous weathers such as rain, fog etc... it is not spotted in or near holy places, that means it has its own stable environments and wont be sighted in warm\hot\humid places such as deserts, seaside country's and a land with deep holy presence (Israel, Egypt and a lot more country's mainly in the middle east)[citation needed]
  • Siren Head is capable of evolving into different forms of itself. It is unknown if this creature evolves to adapt to it's location, or for it to improve on it's hunting.
  • Interestingly, The Blood, Wood, and Ice Siren Head do not possess teeth for unknown reasons.[citation needed]
  • Trevor Henderson has confirmed that Siren Head and Long Horse are aware of one another, possibly being enemies due to their different points of view,[12] also he has said that Cartoon Cat and Siren Head come from "the void" and are enemies of Long Horse and the Lamb.[13][14]
  • Trevor mentioned that Siren Head can change his height, which can be seen in the photographs, where his height changes from the size of a lamp to the size of a huge building. The average height is 12-30 meters and the maximum height is 95 meters.[citation needed]
  • Junji Ito review various horror artist including an artwork depicted by Junji Ito.
  • It can blend in with trees as much as the urban landscape.
  • It’s victims are often taken without a trace, and it uses its audio and mimicry to isolate and confuse its victims.


  1. Trevor Henderson regarding Siren Head.
  2. 2.0 2.1 2.2 2.3 2.4 Twitter - Since i've seen a lot of people asking, here's some Siren Head facts!
  3. Twitter - A third sighting image of Siren Head.
  4. Instagram - -family of four missing from their suburban home this Thursday night, with no signs of a break-in. Neighbours reported the disappearance when they saw the backyard patio door was left open, and no one answered the front door when they-
  5. Tumblr - What sounds do sirenheads make when moving? Do their bodies creak and snap or are they like silent predators?
  6. Tumblr - Question: how fast can air raid siren guy run and if you were in a car- would it be possible to escape him? That family vacation picture turned me into the thinking emoji lol,,, I love your work, and I'm always looking forward to seeing your art! I hope you have a nice day!!
  7. Tumblr - Apologies if I ask too many things, but will the sirenheads ever “update” their biology? Of course they look AMAZING right now, but I mean that as time passes, the design of sirens may change, and they might end up looking more and more out of place. What if people start hunting them?!
  8. Siren Head is NOT an SCP
  9. Siren Head Gangnam Style
  10. Tumblr - Is there more than one of your creatures? Like a colony of Mr. Bonesworth, a team of long horses, a tribe of siren head?
  11. Twitter - Sirenhead is the ambassador / emissary / hype man for...something else from somewhere else.
  12. Twitter - It stands to reason, but, assuming they live in the same universe, I would imagine that Longhorse and Sirenhead are directly antagonistic against each other?
  13. Twitter - saintly entities and their enemies from the void.
  14. CuriousCat Slimyswampghost



List is in Alphabetical Order. Characters colored Gold are Popular Characters. More will be added to the list soon.

A - D

Anxious DogsAvian GiantBaby BirdBellringerBig CharlieBody WormBonesworthBreaking NewsBridge WormCartoon CatChicken GhostCorpse AbominationCraigslist Monster (Craigsmeat)

E - H FencerFour More Found-Footage CreaturesFun for AllGiant PuppeteerGod Of RoadkillHokkaido Hands
I - L Laundry man.jpgLeviathanLil’ NuggetLong Horse
M - P Misty Guests 1-3Morning WalkersMr. BagMushroom CrabNumbered HumanoidsOne Thing, But with Many VoicesPrecursor of the First War
Q - S Quarantined FamilyRemain IndoorsScissorsSensory ProcessesSiren HeadStorm Cloud CreatureStorm Warning Entity
T Tendril GiantThe AngelThe Bird WatcherThe DoveThe Fetid KingThe GarbagerThe Giant with Red DotsThe God of BirdsThe LambThe Man In The Red RoomThe Man With The Upside-Down FaceThe MarionetteThe Misty GiantThe NeedleThe Nervous HouseguestThe Sisters of the Ever-Sharpening BladeThe Skunk QueenThe Smile RoomThe StrangerThe Tall VisitorsThe Wandering DoomThe Wandering FaithThe Woman on The BusThree Red StringsTree Head
V - Y WatchtowerWildfire Giants 1-8Your Friend