Jack Nyras, also known as Eyeless Jack or EJ for short, is a male demon creepypasta. He is very tall with pale blue-grey skin. He has three tongues. He has dark claw-like hands. Jack has sharp teeth. His ears are long and pointed. He has no eyes, only sockets that sometimes leak a tar-like substance. He often wears a blue mask with nothing but eye holes. He likes to wear hoodies. He has piercings: ear lobes, a septum, and snake bites. He has brown hair. He has heightened senses, particularly in hearing and sight. He is very calm and methodical. Jack is very well-spoken and mannered. He is very curious. He has a lot of knowledge, specifically in medical stuff. He was turned into what he is after a cult ritual in which cult members poured tar into his eyes. He sustains himself on human flesh, his favourite being kidneys. He serves as a doctor for the other creepypastas at Slender Mansion.