Is there a specific mark that appears on the face of a disbeliever, and can he repent and believe, so that this mark is removed?

There is no evidence for a distinguishing mark on the disbeliever's face in this world. However, in the Hereafter, disbelievers will be recognized by their darkened faces, blue eyes, blindness, deafness, and muteness. They will be resurrected on their faces, as stated in the Almighty's words: "And We will gather them on the Day of Resurrection on their faces, blind, mute, and deaf," and His saying: "The criminals will be recognized by their marks, and they will be seized by their forelocks and feet."