Species Human Affiliation Humanity Jack the Ripper is Humanity's representative in the fourth round of Ragnarok. Jack the Ripper, or Jack, is an infamous serial killer hailing from late 19th century Britain. Normally, Jack has the disposition of a typical British Gentlemen, accentuated by his sophisticated diction and actions. However, Jack is a true sadist and monster at heart, being considered by most to be a person shrouded in malice and evil, murdering people as he considers the fear they feel before death to be absolutely beautiful.