Quasiman is a fictional character from the Wild Cards anthology series. He was created by author Arthur Byron Cover.
Quasiman is a Joker, a person mutated by the Wild Card virus. He does not remember his past or his real name, or indeed any information prior to his transformation. He is large and powerfully built, but with a hunched back and twisted spine. Quasiman is the caretaker of the Church of Jesus Christ, Joker in New York's Jokertown, having been hired by Father Squid shortly after the Church opened.
Quasiman has superhuman strength and can teleport, but his powers come with a price; his body is constantly in flux, with molecules moving back and forth in space and time while still staying part of him. Because of this, his mind has difficulty focusing. At times his thoughts are clear and lucid; but those times are few and far between, and never last very long. Usually it is an effort for him just to remember what he was going to do, or if he'd already done it, or if his memories are of the past or future. Occasionally parts of his body will phase out of existence, then back in again.
Quasiman is not a major character, but plays a significant role twice; he is resuscitated by "faith healer" Reverend Leo Barnett, which gains Barnett enough public recognition and sympathy to later be elected President. Later, he is involved in Detective Hannah Davis' investigation of the burning down of the Church, which gets him entangled in uncovering the Card Sharks conspiracy.