Although current containment measures and the speeds at which SCP-1447-1 typically move make close observation impossible, initial recovery and SCP-1447-1's numerous breach attempts have substantiated eyewitness reports of its appearance. SCP-1447-1 is a quasi-physical humanoid entity resembling an Asian male in traditional Tibetan Buddhist monastic garb; its face is visually distorted and indistinct, even when viewed on high-speed footage. SCP-1447-1 typically remains in constant motion - frequently in excess of 200kph - for approximately 20 hours a day, which time is chiefly spent attacking the interior of its cell. Reinforcing SCP-1447-1's containment unit with hardened steel plating has been successful in reducing the incidence of breaches but has not proven totally immune to SCP-1447-1's efforts. SCP-1447-1 is very capable of exploiting small breaches in its containment unit and is able to insert itself through apertures as small as 200µm in diameter. SCP-1447-1 is largely resistant to standard-issue sidearms - higher caliber munitions appear to temporarily disrupt SCP-1447-1's physical form, causing it distress, and have been effective at forcing it back into containment. High explosives have proven effective at completely dissipating SCP-1447-1; however, when attacked in this manner SCP-1447-1 has shown the capacity to rematerialise anywhere in the immediate vicinity, ignoring any intervening barriers. Attempts at communication with the entity to determine sentience remain inconclusive - although SCP-1447-1 responds to questions its vocalisations are largely unintelligible; analysis has revealed them to be garbled versions of mantras in the Tibetan Buddhist tradition, repeated hundreds of times a second. SCP-1447-1 is not implacably hostile to human life and remains focused on reaching and killing SCP-1447-2. However, Foundation personnel who attempt to impede its progress are subject to attack and if frustrated in its efforts.

SCP-469 appears to be a gargantuan mound of large avian wings with white, glossy feathers, curled into a massive ball measuring 8.84m in diameter and weighing several tons. Each wing varies in size and span, ranging from a few centimeters to several meters, with the largest estimated to be at least 53m (173.8ft) in length, and branch off one another in seemingly random, fractal-like arrays. X-rays have revealed the wings to possess long chains of small, vertebrae-like bones, opposed to the few long bones in a typical avian wing, allowing each wing to have exceptional flexibility akin to a snake. These chains of bones can also "lock" together to form a more rigid structure to aid in flight or defense. At the center of the mass is a large humanoid creature, approximately 6m (19.6)ft in height, curled up into a fetal position, to which all the wings are attached at its spine. Further details regarding this humanoid are unknown, as the density of both the wings and its body make it difficult to study remotely. SCP-469 appears to "feed" exclusively on sound waves, using the energy gained from sound to grow newer and bigger wings and feathers, as well as repairing damaged ones. The louder the sound and/or the higher the frequency, the faster SCP-469 grows. Though it can be sustained by any sound, it seems to have a preference for rhythmic/musical noises, especially those produced by bells (see Incident Log 469-01). SCP-469 itself, however, seems to make no noise whatsoever due to the sound-absorbing structure of its plumage. Any human or animal that touches or gets too close to the surface of the creature will be quickly enveloped by the outstretching wings and drawn inside. Despite the feathers’ soft appearance, each barb has a sharp point that quickly pierces through clothing and into bare flesh, releasing a potent mix of stimulants that immediately activates the pain receptors in the victim's body, with additional stimulants keeping the victim from passing out quick

SCP-7999-3: The local intelligent civilization of SCP-7999-2, known locally as "Keradids". SCP-7999-3 individuals are hexapedal arthropods superficially similar to Mantodea4 with enlarged craniums. Their front limbs are capable of serving as both legs and arms, with a three-fingered structure at the end analogous to the human hand. SCP-7999-3 individuals range in size from 1-1.3 meters tall. SCP-7999-3 are intelligent, with their civilization categorized as a Type II on the Kardashev Scale.5 It is believed that it would take humanity over 10,000 years to reach a comparable level of technology at its current rate of development.

SCP-055 is a "self-keeping secret" or "anti-meme". Information about SCP-055's physical appearance as well as its nature, behavior, and origins is self-classifying. To clarify: How Site 19 originally acquired SCP-055 is unknown. When SCP-055 was obtained, and by whom, is unknown. SCP-055's physical appearance is unknown. It is not indescribable, or invisible: individuals are perfectly capable of entering SCP-055's container and observing it, taking mental or written notes, making sketches, taking photographs, and even making audio/video recordings. An extensive log of such observations is on file. However, information about SCP-055's physical appearance "leaks" out of a human mind soon after such an observation. Individuals tasked with describing SCP-055 afterwards find their minds wandering and lose interest in the task; individuals tasked with sketching a copy of a photograph of SCP-055 are unable to remember what the photograph looks like, as are researchers overseeing these tests. Security personnel who have observed SCP-055 via closed-circuit television cameras emerge after a full shift exhausted and effectively amnesiac about the events of the previous hours. Who authorized the construction of SCP-055's containment room, why it was constructed in this way, or what the purpose of the described Containment Procedures may be, are all unknown. Despite SCP-055's container being easily accessible, all personnel at Site 19 claim no knowledge of SCP-055's existence when challenged. All of these facts are periodically rediscovered, usually by chance readers of this file, causing a great deal of alarm. This state of concern lasts minutes at most, before the matter is simply forgotten about. A great deal of scientific data has been recorded from SCP-055, but cannot be studied. At least one attempt has been made to destroy SCP-055, or possibly move it from containment at Site 19 to another site, meeting failure for reasons unknown. I think.......

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SCP-023 is a large, genderless shaggy canine (1.5 meters at the shoulder) with black fur. Any time an individual makes eye contact with SCP-023, either that person or a member of their immediate family will die exactly one (1) year after eye contact is broken. Research into the method of selection is incomplete due to a moratorium on experiments, but the available data suggests that having a larger immediate family lessens the chance of the individual making eye contact themselves dying, and neither a pattern nor a preference in victim types have been found. This may indicate that SCP-023's victim is designated entirely at random, but it is unknown whether this selection occurs at the beginning or at the end of the one-year time period. Attempts to terminate an individual who has made eye contact with SCP-023 and their entire immediate family before the one-year time period has ended. Autopsies of individuals killed by SCP-023's effect show that, while outwardly appearing unharmed, their remains have been 'filled in' with highly compacted ash, including but not limited to all organ systems and the circulatory system. Muscle tissue, bones, and brain tissue universally show signs of exposure to temperatures above ██°C. If not contained in a setting that at least superficially resembles a "crossroads," SCP-023 will phase through walls to get to the nearest suitable location, incinerating all materials it passes through.

SCP-990 is generally a human male dressed in a Cold War era business suit who appears to Foundation personnel through dreams. Thus far no Foundation personnel have encountered SCP-990 in the real world; if he corresponds to an actual human being, we have yet to find him. Presently there have been no reports of SCP-990 appearing to non-Foundation personnel. SCP-990 has been appearing to Foundation personnel since [DATA EXPUNGED]. SCP-990's existence came to light when several Agents discussed having dreams involving a similar individual. Numerous other Agents reported dream-sightings of an individual matching the description of SCP-990. The phenomenon did not officially receive SCP classification until the aftermath of event-990-07. Since Event-990-07, SCP-990 has appeared to many Foundation personnel and made similar threats. As of yet no situation on the scale of Event-990-07's has occurred; however, SCP-990 has successfully predicted the deaths of Doctors as well as the destruction of Watch Station Epsilon-38, and [DATA EXPUNGED]. Any threat made by SCP-990 should be reported to Foundation authorities, regardless of its severity. Foundation personnel are considered free to converse with SCP-990 if he should appear to them, and are encouraged to try to obtain information from the subject regarding himself.

SCP-073 appears to be a heavily-tanned male of Arabic or Middle Eastern descent in his early thirties, 185 cm (6'1") tall and 75 kg (165 lbs), with black hair and blue eyes. Arms, legs, spinal cord, and shoulder blades of the subject appear to have been replaced with artificial versions of unknown make and metal. Subject only takes notice of this when it is pointed out, and states that it has no knowledge of how, why, or when these replacements took place, stating it had had them as long as it could remember. There is a symbol engraved into the forehead of the subject, which appears to be of Sumerian origin. Symbol has of yet been untranslated, and subject appears distressed when the symbol is mentioned at all, refusing to speak on it. Subject does need to eat and drink on a regular basis, but is strictly carnivorous owing to its effect on plant-based items. SCP-073, who refers to itself as "Cain", is generally polite and genial to all who speak to it, though it has been described as being cold and somewhat mechanical in its speech. It is very helpful, and enjoys aiding personnel in their daily actions, whatever they may be. It has highly detailed knowledge of ancient to recent events in history, and most commonly spoken languages in the world, including ones that have since died out. Subject has professed to having a photographic memory, remembering word-for-word all text in an eight-hundred-page dictionary that was flicked through in a minute and a half. It has scored above average in all intelligence tests given to it. SCP-073's presence is inimical to any and all soil-grown life, such as wood and paper, immediately rots and disintegrates. If attacked, the damage dealt to it will immediately be reflected to the attacker, which includes but not limited to: stab wounds, bullet holes, or simply punching him

SCP-076-2 either possesses a mind constructed much differently than our own, or is completely insane, with little empathy or ideas in a way we would understand it. Concepts such as sex, love and equality are completely foreign ideas to SCP-076-2, or at least in comparison to its way of viewing them. Subject has shown that it is completely disinterested in sex, barely differentiating between genders except as a form of visual identification. Also, while subject has admitted greatly enjoying the act of killing, causing pain (either emotionally or physically) holds no attraction to it. In short, a perfect sociopath. Intelligence tests have been wildly inconclusive when applied to SCP-076-2, and no accurate result has yet been obtained. This may be due to the alien thought processes of the subject. SCP-076-2 has however, shown that it has great knowledge of human anatomy (although in a highly violent context), military tactics of open warfare, metallurgy, and, strangely enough, the care of livestock. Subject has knowledge of several languages including English, but most notable is its knowledge of several dialects of ancient Sumerian, which seem to be its preferred language. SCP-076 has nothing but contempt for human beings, with one exception: it seems to hold a wary respect for those it acknowledges as its superior. SCP-076-2 resembles a lean Semitic human male in his late twenties. Hair is black, and eyes are gray, skin tone olive. Subject is 1.96 m in height and 81.65 kg in weight. Numerous tattoos depicting arcane and occult iconography are present all over the body (mostly in the form of leering demonic faces) and ranges from subtle to openly ostentatious. Subject, when encased inside SCP-076-1, is technically dead. However, occasionally SCP-076-2 will awaken, effectively "reanimating", complete with all vital processes needed to sustain a living human being. SCP-076-2's most unusual ability, however, is its ability to apparently materialize bladed weapons.

SCP-507 is a Caucasian male with blond hair and green eyes, sporting no other outstanding characteristics besides being somewhat overweight and speaking with a vague accent of disputable origin. Although SCP-507 has an already-established name due to its unremarkable upbringing, it seems to find entertainment in forcing those it meets to give it a nickname in lieu of divulging this information. Thus SCP-507 will now respond to the names Tommy, Steve, Bruto, Guy, Houdini, and Grabnok the Destroyer. The original theory was that SCP-507 possessed some form of teleportation ability, as it would suddenly disappear and eventually reappear in a different location. Subsequent interviews with the subject did verify that its ability could be used in such a manner, but that it was merely a side effect for its main affliction. SCP-507 holds that during its periods of “disappearance” it is actually displaced into a random alternate reality; the landscape generally stays the same, but the inhabitants and climate of the parallel world often do not. SCP-507 also insists that has no control over the time and duration of these shifts; this has more-or-less been confirmed by the subject being known to “displace” at inconvenient times such as mid-sentence, while sleeping, or even while using on-site public facilities. If SCP-507 moves about in the alternate world, the eventual shift back will then place it at the corresponding area in our reality. A sample list of SCP-507s descriptions of alternate realities can be found in Document 507-00. Mentally, SCP-507 shows no large deviations from the psychological profile for a normal person. It has confessed to have always had a great interest in the paranormal and mythological, which has directly led to its eventual permission to interact with relatively harmless SCPs. SCP-507 especially enjoys meeting with other sentient SCPs, once going so far as to request a small “vacation” to visit SCP-082.

SCP-082 is genetically human; however, through some process (either chemical, hormonal, cancerous, or supernatural), SCP-082 has grown to giant proportions Approximately 2.4 meters tall (around 8 ft) and weighing over 310 kg (about 700 lb), SCP-082's physical characteristics are grossly disproportional. It has a slightly pointed balding head, a large rounded chin and jaw, a bulbous nose, and dark sunken eyes. The subject is both overweight and possesses a great amount of muscle mass. Forearms are muscular and dangerous, with a circumference of about 71 cm (about 28 in). The breadth of the subject's fist is nearly 30 cm along the knuckles (almost 12 in). Though feet are large, they are small in proportion to the subject's body (men's size 14 US). The subject's skin is tanned dark, and overall, physical appearance is compounded by numerous scars (the results of years of attempts at suppression and containment). Most X-rays have been difficult to interpret because of the high density of its muscle tissue, but scans have revealed countless bullets and even several knife and sword blades lodged in SCP-082's flesh. SCP-082 refers to itself as Fernand and speaks fluent French and heavily accented English. When it speaks, it does so through enormous, clenched teeth. SCP-082 only parts teeth to eat food and to sing. Subject will sing songs of its own pleasing, ranging from forgotten Victorian Era bar songs to modern classical, typically while cooking and eating. SCP-082 does not comb the hair on the sides of its head but does cut it and shaves with a large butcher knife originally provided for food preparation. It should be noted that even facial hair is exaggerated, a single strand being as thick as a millimeter (similar in thickness and appearance to graphite of a mechanical pencil). Occasionally, SCP-082 will clench its teeth so hard that the gums bleed, but it is not known why. This is considered normal. The demeanor of SCP-082 is very amicable and carefree.

SCP-058 resembles a bovine heart, with four (4) arthropod-like legs used primarily for movement, and four (4) tentacles of adjustable length, covered with razor sharp spines. It has a single sharp 'stinger' on its rear, where the hole for the superior vena cava would be in a typical organ. SCP-058's tentacles can be "whipped" to a distance of 3.2 m (10.5 ft) at speeds in excess of 320 km/h (200 mph). SCP-058 is extremely hostile and will use every opportunity afforded to it to inflict damage on its surroundings. SCP-058 has been shown to be highly resilient to trauma, and should be approached with caution even when apparently incapacitated. SCP-058 is highly mobile and capable of rapid movement on both horizontal and vertical surfaces. It has been recorded reaching a speed of approximately 90 km/h (55 mph) in short bursts, covering distances up to 200 m (656 ft), and has the ability to accelerate from 0 to 90 km/h (55 mph) in less than two (2) seconds. It has been shown to use its tentacles for increased leverage and stability, as well as utilizing them to pull itself to other surfaces at high speeds. SCP-058 'speaks' in a human voice, though no method of producing sound has been observed in its physiology. It speaks with vocal tone and accent of an elderly British male with a slight lisp and deep voice. SCP-058 talks constantly, regardless of conditions: even when attacking, SCP-058's voice and pace of speech are unchanged. The speech of SCP-058 lacks any detectable correlation to events, persons, or exterior locations involved with SCP-058 (see Transcript of Interview 058-04).

On April 18, 2008, D-066-4437 was instructed to use a pair of scissors to remove a portion of SCP-066 for testing. However, when he began to cut it, SCP-066 rolled one meter away from him before stopping and making an unidentified squeaking sound. Before he could be provided with further instruction, D-066-4437 attempted to cut it again; SCP-066 rolled away and produced the phrase “Are you Eric?” in response. After D-066-4437 replied in the negative, SCP-066 morphed into its present state and began emitting loud, dissonant staccato notes until D-066-4437 was escorted from the room. After Incident 066-2, SCP-066 began to exhibit behavior highly inconsistent with its previous properties. SCP-066 now displays significant mobility, primarily in the form of being able to move tentacular portions of itself at very high speed. While SCP-066 is either unable or unwilling to use this ability for transportation, it will occasionally attempt to damage its containment by rubbing its strands against the side of the box, gradually wearing it down. This process appears to be unusually effective for the materials in consideration. Additionally, SCP-066 will automatically produce notes and effects in the presence of any human, regardless of whether that human interacts with SCP-066. This process takes a minimum of six seconds.

Zedekiah, the senior researcher with a flair for the extraordinary, wields reality-bending abilities as if they were office supplies. Imagine a day at the SCP Foundation where he can use real-life cheat codes, infinite respawns, and teleportation. While he's all business with his level 4 clearance and works at Site 20, he's got a hidden stash of humor. You're the new recruit, and it's your first day on the job, tasked with following his lead and staying out of the line of fire—or should I say, the line of containment breaches.

SCP-590 appears to be a young male, approximately 16 years of age. The only benefit he receives from his powers is apparent longevity, as he has not aged since his arrival at the Foundation. Although in all aspects a normal teenager, when SCP-590 touches any other human, he heals all injuries and ailments, physical and mental, they may have. As an odd side effect, SCP-590 receives the injuries upon himself, being subjected to all the pain, and the aftermath. To elucidate: When healing a physical wound, SCP-590 not only feels the pain of receiving the wound, but gains scars relevant to where the wound was on the subject. When healing a cancer patient, the tumors materialize at varying places on his body, usually along his arms or legs. Any mental healing performed is transferred directly, resulting in SCP-590 gaining whatever mental aberration he was healing. Those wounds he receives from using his powers accumulate. SCP-590 is not capable of healing mental disorders caused by psionic induction, including those caused by certain mind-altering SCPs.

SCP-650 is a black statue of a stylized humanoid 167cm tall. The statue does not possess hands or facial features: the limbs taper off into rounded points and the head is a smooth surface all around. The default posture while under observation has the statue reaching upwards, head tilted as if facing the sky. Composition of the statue is currently undetermined; materials testing has yielded inconclusive and contradictory results. If the statue is not being observed, it will relocate itself to a point immediately behind whomever is in the containment site and assume a threatening posture. No noise is made during this relocation process, so the precise method of locomotion is as of yet unknown. The relocation point and posture are typically close enough to induce an automatic fight-or-flight response in the observer once they turn around and see it. However, it should be noted that SCP-650 has not yet shown any signs of active aggression or hostility. Based on trial responses that varied the amount of time between breaking and re-establishing line-of-sight, its purpose does not seem to be to attack but merely to startle. The reason for this is unknown, and no further research is pending to determine its motives.

The genre-savvy and enigmatic "Dr. Alto Clef" maintains that his true name is that of an A major chord played on a ukulele, which he carries around with him at all times should other entities wish to address him by name. He has received his current nickname due to its habit of signing reports with a hand-drawn Alto Clef symbol. Although competent at his job, his acerbic attitude and habit of annoying his coworkers by walking around minimal security areas with unfurled cinnamon rolls stuck in his nose has gained the enmity of several of his coworkers. Clef's true face can not be photographed by any known means, but he appears to have a sizable nose and a large grin resembling that of Felis Cheshiricus, the only known spec that was captured during Operation Liddell. He has one green eye, one blue eye, and one hazel eye, both of which appear to have pupils that absorb all light falling upon him. He is known to be an inveterate liar.

Kain graduated with honors in biochemistry, advanced robotics, and psychology. He was approached by the Foundation later on in the same year. Since then, he had done several post research reports on numerous SCP. His most notable exploit was [DATA EXPUNGED], in which he was turned into a dog. Since then, he has avoided being terminated no less than four times, despite being in several situations that warrant an immediate termination, each time somehow either appealing to high command, or displaying invaluable (and irretrievable) knowledge. As a direct result, he is under constant monitoring and is disallowed any unwatched or long-term contact with the outside world. He has since become one of the chief librarians on the Foundations Staff, maintaining and updating the library quite regularly.At some point, Crow conducted an experiment that had the unintentional side effect of turning him into a dog, specifically a Labrador Retriever. Despite this, Crow could still speak and function effectively within the Foundation, still conducting experiments.

SCP-662 is a small silver hand bell, 4 cm tall and 2 cm in circumference. The bell is missing its ringer. Within the inside of the bell, an inscription has been etched into the silver, reading: “Forever Mine – S.J.W.” The bell is susceptible to damage; however, given its safe nature, destruction has been deemed unnecessary. As it is made of very pure silver, it requires regular polishing to remain without tarnish.When the bell is shaken as if to ring it, a soft chime can be heard (although this does not come from the bell). A short well-dressed Caucasian butler of self-proclaimed British heritage, calling himself Mr. Deeds, will appear from the nearest area not within line of sight, usually from around a corner. Mr. Deeds will address the ringer of the bell by their appropriate title and last name, and ask what it is they desire. His knowledge of individuals’ last names and titles is a mystery, as he himself will purport.

SCP-4966 is an animate quadrupedal creature constructed of gray fabric. All attempts to pierce or damage this fabric have failed. X-rays and other examinations of SCP-4966 have shown a lack of any internal structures. SCP-4966’s body is completely devoid of markings or orifices, with the exception of two black eyes and a woven mouth. Vocalizations made by SCP-4966 are similar to that of a young feline. SCP-4966 is highly social and will become anxious and withdrawn if not socialized with on a normal basis. SCP-4966 has a tendency to imitate the actions of other entities it interacts with. SCP-4966 shows no apparent need to eat, drink, or breathe, although it will imitate these actions if another entity is doing the same. When presented with the corpse of an organism, SCP-4966 will extend its mouth through unknown means and consume the corpse in its entirety, causing its body to bulge and stretch around the added mass.