
Barnett appears in Invincible's third-season flashbacks as Chicago's district attorney. When a grieving Scott Duvall pleads with her to open a case against Invincible after his sister and niece are killed in Chicago, she turns him down, and that rejection becomes one of the shoves that sets him on the road to becoming Powerplex.
Barnett is a slim woman of medium-to-dark skin who keeps her dark brown hair gathered into a tall ponytail. Her courtroom look sets a red top beneath a tailored black suit and is capped by short-heeled black shoes.
Level-headed and practical, Barnett carries out her job with a strong sense of duty and no illusions about what the law can achieve. She keeps her feet on the ground yet extends real warmth, breaking hard news kindly and weighing genuine sympathy against the firm limits of what her office allows.
In her role as Chicago's district attorney, Barnett draws a relentless push from Scott Duvall, who is desperate for her to open an inquiry and put Invincible on trial after the destruction of the city claims his sister and niece. He and his wife bury her office in phone calls, emails, and even a petition, and every one of them goes ignored. Fed up, Scott finally corners her in a parking garage as she reaches her car and lays out his case, recalling the countless dead. Barnett hears him out with sympathy but reminds him that Invincible had been shielding the world from Omni-Man, and she quietly admits there is nothing within her power to do. That answer lands as another blow driving Scott toward his vengeance as Powerplex.

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Barnett is Chicago's district attorney in Invincible's third-season flashbacks, who turns down Scott Duvall's plea to prosecute Invincible after his sister and niece are killed in the destruction of Chicago.
Scott Duvall confronts Barnett because he wants her office to open a criminal case against Invincible for the deaths of his sister and niece during the destruction of Chicago, after his calls, emails, and a petition go ignored.
No, Barnett turns down Scott Duvall's request, explaining that Invincible had been protecting the world from Omni-Man and admitting there is nothing within her power to do.
Barnett's rejection becomes one of the blows that pushes the grieving Scott Duvall further down the path toward becoming the villain Powerplex.
Barnett appears only in the Invincible Season 3 episode All I Can Say Is I'm Sorry.
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