Mist was originally a scientist who through his invisible-solution serum tan formed him into a gaseous entity. As a foe of Starman and Black Canary, Mist used his formula to mentally control his prey, although each time his schemes were overturned by his foes. After his invisible henchmen Roscoe and Bennie Bozak betrayed him to their girlfriends, the Mist joined the Secret Society of Super-Villains in an effort to conquer Earth-Two by exiling the Justice Society and Justice League into Limbo. When their plot failed, Mist and his cronies were the coiled into Limbo for a period of time, although they returned to battle the All-Star Squadron.
Cyclops and Swamp Thing
11 hours ago