• 彼は何者ですか
    • Who (on earth) is he?
    • その男が何者なのか分からない
    • The identity of the man is unknown.
    • 何者の仕業なのか一つも手懸りがない
    • There is not even a single clue to who did it.
    • 何者かがその秘宝を持ち去った
    • Some unknown person [Someone] has made off with the treasure.
    • 当時その部屋には何者もいなかった
    • No one [Nobody] was in the room at the time.
    • 規則を破れば何者といえども罰せられる
    • Anyone who violates the rules will be punished.