This COUGAR is actually a secret agent. Cruisin’ the streets in her animal print infested van, she makes stops along the way to pose as her public identity as a hair stylist and club DJ. A member of the secret organization known as "Chicks With Picks", Marianne, (or so her current ID states),  can be found watching out for the general public by hosting open mic nights, or spinnin' their favorite tunes.

A guitarist whose career has spanned the 90s and 2000s, Ms. Sullivan regularly sports a pearl white Fender Heavy Metal Strat, or another one of her vast collection. The girl rocks from Aerosmith to soul, or from Fleetwood Mac to Lita Ford. She holds down the rhythm and adds her vocals for COUGAR when needed or highlighted.

Marianne is the health and nutrition expert for this league of super heroes, offering her detailed plans on how to stop the criminal and corporate element from world domination, although there are some who wonder aloud if she could be a double agent sent from the world of DJ's and Karaoke. That is only until her energetic and frenetic defense of the people is evident when she takes the stage.