Mark Twain (マーク・トウェイン,, Māku Tōein?) is a former member of the Guild, and his ability is Huck Finn and Tom Sawyer. Twain is generally a jovial and cheerful individual, in contrast with most of his fellow Guild members. As one of the Guild's snipers, he takes considerable pride in his marksmanship and ability, wherein he keeps a personal record of his endeavors that utilize such skills in his "success diary". Twain would also often dote on his doll-like companions Huck and Tom for their skills.