Roulette was a conniving entrepreneur who ran an illegal no-halt cage fighting ― the Meta-Brawl.
Roulette enlisted super-powered villains to entertain Gotham's elite. She shrewdly used Wildcat's "mid-life crisis" to recruit him in the event. She made good money out of his fights, and for some time he was her biggest attraction. However, all this changed when Black Canary and Green Arrow broke into Meta-Brawl and bailed Wildcat out, leaving Roulette deprived of her biggest attraction and income source.
Consequently, Roulette turned to Grodd, who supplied her with contenders from the Legion of Doom in exchange of a fee. However, when Lex Luthor overthrown Grodd and took over the Legion, Roulette's revenues decreased significantly. So, she sought Luthor for commiseration, and following an argument with a jealously possessive Tala, they come up with a new concept for the Meta-Brawl – Glamor Slam ― a new no-halt cage fighting in which the main contestant would be female Justice Leaguers.
Roulette set up a new arena in Blüdhaven and, thanks for Grodd's mind controlling technology, enlisted the League's most prominent heroines. Her most valuable attraction was Black Canary, who managed to retain the undefeated champion title for some time. However, when Canary broke free of her control thanks to the Huntress's meddling, Roulette pitted both of them against the might of Vixen and Shayera. Then, when the latter snapped out of the mind manipulation, Roulette unleashed Wonder Woman. While the controlled Amazon spread havoc all over the arena, Roulette was confronted by the Huntress in a hand-to-hand combat. She revealed herself to be a cunning martial artist, but despite her talents, Roulette was eventually overpowered by the Huntress. The Glamor Slam was shut down and Roulette was finally arrested.
Roulette first appeared in JSA Secret Files #2 (September 2001). She ran "The House", an underground Casino for super-villains where mentally-controlled superheroes were compelled to fight each other to death. Roulette was responsible for the death of many superheroes, including most of the members of Hybrid, and Firebrand III. She also abducted seven members of the Justice Society, but that maneuver caused her arena's destruction. Roulette had no powers of her own, but she was endowed with a keen intellect, and surrounded herself with all sorts of security gimmicks, such as death traps and robot security dogs. Roulette is the granddaughter of her namesake Golden Age villainess, who clashed with Mr. Terrific (I) and had an affair with his brother, Ned.