Captain Cold is a fictional supervillain appearing in DC Comics. He is known as one of the main adversaries of The Flash, possessing a cold gun that can freeze objects and people instantly. His real name is Leonard Snart, and he is often portrayed as a master thief with a strong sense of honor. Captain Cold is a member of the Rogues, a group of villains who frequently battle The Flash. Despite his criminal activities, he has a complex personality and sometimes shows a code of ethics, making him a compelling character in the DC Universe.