High Quality Content by WIKIPEDIA articles! Captain Cold, real name Leonard Snart, is a comic book villain created by John Broome and Carmine Infantino as one of the archenemies of Flash. He is a leader of the Rogues. A fan favorite, Captain Cold has served as a bitter enemy to the Silver-Age Flash Barry Allen, both enemy and grudging friend to the modern-day Flash Wally West, and one of the killers of the fourth Flash Bart Allen.