4155. Weather Wizard

Weather Wizard (Mark Mardon) is a fictional DC Comics supervillain, normally portrayed as an enemy of the Flash. The Weather Wizard first appeared in Flash #110 (December 1959-January 1960).

Escaping a prison transport by leaping from the window, Mark Mardon fled to his brother's house only to find him dead. Mardon's brother, Clyde, a scientist, had just discovered a way to control the weather before dying of a heart attack (although recent evidence implies that Mardon murdered his brother and either lied about or blocked out the memory of finding his body[1]). Mardon took Clyde's notes and used them to make a wand to generate weather and embarked on a criminal career as The Weather Wizard, sometimes using his powers on a small scale (such as zapping someone with lightning) and sometimes a larger scale (imprisoning a town in winter), almost always facing defeat by The Flash (Barry Allen). In his first appearance he tried to get revenge on the policemen who imprisoned him, allowing the Flash to predict his target and defeat him.
After Barry Allen's death during the Crisis on Infinite Earths, The Weather Wizard went into semi-retirement for a while, until, during Underworld Unleashed, he teamed up with other Rogues which included Captain Cold, Heat Wave, Captain Boomerang, and Mirror Master, as part of a ploy for greater power. Ultimately, it ended with their deaths and the release of the demon Neron. They were later resurrected as soulless demons, by Neron to use against Barry Allen's successor Wally West, who manipulated Neron to return the Rogues' souls. The Weather Wizard and the others, save Heat Wave, returned to a life of crime.
Weather Wizard joined up with Blacksmith and her rogues. Through her, he learns he has a son from a one night stand with Keystone City police officer Julie Jackham. Their son, Josh, had exhibited internalized weather-controlling abilities and Mardon wanted to have the same ability without the use of his wand. He tried to kidnap Josh from Wally's wife, Linda and dissect him to understand out how his son gained that ability, but hesitated to harm the child when he noticed that the child had "my eyes...my brother's eyes." He was stopped by Flash and sent to Iron Heights, but escaped. After Blacksmith's group disbanded, the Weather Wizard, along with Mirror Master and Trickster, joined up with Captain Cold, who declared himself the leader of the Rogues. Mardon was also the representative of the rogues for the Secret Society of Super Villains.

One Year Later, he and several other Rogues are approached by Inertia with a plan to kill the Flash (then Bart Allen). Inertia destroyed Weather Wizard's wand and used 30th century psychological therapies to remove the mental blocks which prevented him from using his powers without it. Though Inertia is eventually defeated, the other Rogues successfully beat Bart to death, Weather Wizard using his control over lightning to electrocute him. After Allen's identity was revealed, Mardon was surprised and horrified to discover that the Rogues had "killed a kid".