Jeff the Killer is an iconic Creepypasta serial killer known for his ghostly, disfigured appearance and sadistic nature. He is infamous for sneaking into victims' homes at night and whispering his signature catchphrase, "Go. To. Sleep." before attacking them with a kitchen knife. Physical DescriptionFace: Unnaturally chalk-white skin caused by chemical burns, accompanied by lidless, hollow-looking black eyes because he burned off his eyelids.Smile: A permanent, ear-to-ear "Glasgow smile" carved into his cheeks.Hair: Long, singed, and messy black hair.Attire: A plain, blood-stained white hooded sweatshirt and black skinny jeans.Build: Typically described as a slim but athletic teenager. Personality TraitsSadistic and Psychopathic: He is widely characterized as a merciless killer who operates on pure bloodlust, showing little to no remorse or empathy for his victims.Reckless and Brash: He is a loud-mouthed, cocky, and aggressive individual who relies heavily on his killer instincts and unpredictable nature.Insecure and Hidden: Despite his "I don't care" attitude, he harbors deep self-dislike regarding his disfigurements, often putting on a boastful front to hide his internal turmoil and psychological pain.