Chillblaine first appeared The Flash Annual (Volume 2) #4, 1991. Captain Cold's sister, Golden Glider, found dumb but handsome men and gave them each a copy of her brother's cold gun to use as a weapon and become her sidekick. There were four of them: the first three were short-lived, and the fourth one killed Glider. Captain Cold later killed him in revenge, freezing his skin and shoving him out a high window.
Mark (Chillblaine) makes a Crème de Noyaux, an almond-flavored crème liqueur, although it is actually made from apricot kernels or the kernels of peach or cherry pits, which provide an almond-like flavor.
Frost pleads guilty to all four crimes, even though Caitlin is actually responsible for half or them because Frost didn't awaken until Abra Kadabra temporarily killed Caitlin.
Chillblaine's first onscreen victim was frozen and literally shattered which was the fate of his comic book counterpart (courtesy of Captain Cold).