In his comic book appearances, Captain Cold is depicted as an adversary of various superheroes known as the Flash, most notably Barry Allen, and serves as the leader of the Rogues, a loose criminal association.
Actor Wentworth Miller portrayed Captain Cold in The CW's Arrowverse television series The Flash and Legends of Tomorrow.
Snart joined up with a group of small-time thieves and in planning out a robbery, each was issued a gun and a visor to protect their eyes against the flashes of gunfire.
Intrigued by this twist of fate, Snart donned a parka and the aforementioned visor and declared himself to be Captain Cold - the man who mastered absolute zero.
[7] Snart then committed a series of non-lethal crimes, on one occasion placing the city in suspended animation in an attempt to force Iris West to marry him as he had fallen in love with her when he saw her in the prison, but the Flash got through a wall of ice and was able to reverse the process.
But after Barry Allen's death, during the Crisis on Infinite Earths, Captain Cold became a bounty hunter with his sister Lisa, the Golden Glider.
[5] During the events of Underworld Unleashed, Captain Cold lost his soul to Neron before Wally West brought it back to the land of the living.
He murdered the Golden Glider, prompting Captain Cold to hunt him down, torture him and kill him by freezing his outer layer of skin and then pushing him off a high rise building.
His skill and experience have made him a strong leader to the likes of the Weather Wizard, the new Trickster, the new Mirror Master, and the new Captain Boomerang.
Despite his more ruthless nature as of late, Captain Cold's heart is not completely frozen, evidenced by having sent flowers to honor Sue Dibny, murdered wife of Elongated Man.
[volume & issue needed] Traditionally, Captain Cold is driven by three things: money, women, and the desire to beat Barry Allen.
He was captured by the Manhunter and served time in the Suicide Squad, worked with his sister as a bounty hunter (Golden Snowball Recoveries), and, with his longtime friend and sometimes nemesis Heat Wave, encountered Fire and Ice of the Justice League.
[volume & issue needed] In the 2006 One Year Later storyline, he and several other Rogues are approached by Inertia with a plan to kill the Flash (then Bart Allen).
Though Inertia was defeated, Captain Cold, Weather Wizard, Heat Wave, Mirror Master and Abra Kadabra killed Bart with a combined barrage of their elemental weapons.
Captain Cold is one of the exiled villains featured in the 2007-08 miniseries Salvation Run along with his fellow Rogues: Heat Wave, Weather Wizard, Mirror Master, and Abra Kadabra.
After the elder Snart insults him and his mother, calling them weak, Cold punches him, but finds himself unable to kill him, instead getting Heat Wave to do it.
[21] After freeing the Trickster and attending the meeting at the Justice League Watchtower, the Rogues return to Central and Keystone City, only to see that both have been destroyed by Gorilla Grodd.
While there, the Crime Syndicate send Black Bison, Hyena, Multiplex, Plastique and Typhoon to finish Grodd's work and destroy the hospital.
He then unmasks the hooded prisoner brought over from Earth-3, revealing it to be Alexander Luthor, who is their version of Shazam, Mazahs, who states he will kill them all.
[23] [volume & issue needed] After defeating the crime syndicate, Captain Cold is pardoned by the U.S. government, and becomes a member of the Justice League, along with Luthor.
The Flash arrives to stop them, but they turn out to be constructs of Mirror Master laid so that the Rogues can commit a crime spree in Central City.
In the Watchmen sequel Doomsday Clock, Captain Cold and his fellow Rogues are among the villains who attend the underground meeting held by Riddler to discuss the Superman Theory.
[23] During the Rebirth storyline, Snart augmented his Cold Gun even further by combining it with the anti-Speed Force technologies by the science criminal cell called Black Hole.
[27] The newly christened Black Ice Gun now tacked directly into the Speed Force to painfully disrupt a speedster's connection to it.