Rollergrrl is a character from The Incredibles comic book series by Boom! Studios. She is a member of the Confederacy of Crime and eventually the Unforgivables.
The Incredibles comic book
Rollergrrl is one of the many confederacy members called in to retrieve the Alien Superpower Virus from the lab of Doc Sunbright. She actually gets a hold of the canister, but is attacked by Dash and eventually put into a forcefield by Violet. About two years later, after the events of the film, Rollergrrl and her fellow Confederacy members are still active, though their team has generally been falling apart. Going after Jack-Jack, who carries the virus now, the Confederacy of Crime has the key to power enhancement in their grasp, but the treachery of Shifty ends up causing them to lose the virus and the battle. Rollergrrl would be one of the members of the team to escape the NSA authorities and would join up as a member of the Unforgivables, being formed by Xerek, afterwards.