Johnny Quick is the evil counterpart to the Flash in the Crime Syndicate's universe. There have been several versions of him appearing on worlds like Earth-Three, the Antimatter Universe, and the Crime Society universe. Each version has equivalent powers to the Flash, but opposites reflected in their personal story. Johnny Quick was created by Gardner Fox and Mike Sekowsky, first appearing in Justice League of America #29. (1964)
A Golden Age hero named Jonathan Chambers also uses this alias. While initially unrelated to the other Johnny Quick, the events of Infinite Frontier saw the villain's real last name also become "Chambers". Jonathan Chambers was created by Mort Weisinger, first appearing in More Fun Comics #71 (1941).