The Blue Snowman is a fictional character appearing in DC Comics publications and related media, commonly as a recurring adversary of the superhero Wonder Woman.

Created by writer William Moulton Marston and artist Harry G. Peter, the character debuted in 1946 in Sensation Comics #59 as a high-tech extortionist named Byrna Brilyant who used a fearsome costumed persona (known then only as the Snow Man) to coerce money out of innocent victims.

The 2021 relaunch Infinite Frontier portrays the Modern Age Byrna Brilyant as Genderfluid, their Blue Snowman stylings part of their flexible gender-presentation.

This armor is outfitted with weaponry capable of firing a cryogenic blast that can freeze anything in its path, similar to the ice guns wielded by fellow DC Comics rogues Mr.

[3] Byrna Brilyant's scientist father died while working on his invention of "blue snow", a special form of precipitation that freezes everything it touches.

[4] Like many of Wonder Woman's enemies, Brilyant is sentenced to prison on the Amazon penal colony Transformation Island, but in 1948 she and seven female super-villains escape and pool their talents as Villainy Inc.

Blue Snowman is first seen when appearing briefly after battling Wonder Woman and her ally Hessia alongside her robot minions.

[8] In DC's 2021 relaunch known as Infinite Frontier, which made further alterations to the continuity, Blue Snowman makes an appearance, wearing the post-Crisis version of the suit, ambushing Wonder Woman and Steve Trevor during their Valentine's Day date.

[9] Two days before Christmas, Harley Quinn tracks Blue Snowman down for help in curing Poison Ivy's mysterious viral infection.

[15] Blue Snowman appears as a boss in Justice League: Cosmic Chaos, voiced by Vanessa Marshall.