Dallas Riordan was originally the Thunderbolts mayoral liaison then became their enemy as Citizen V. Eventually joining the team and merged with Atlas before being the ion-powered Vantage. She has worked with the NYPD, V-Battalion, Department of Homeland Security and most recently the Commission for Superhuman Activities.

Dallas Riordan

Dallas Riordan was originally the Thunderbolts mayoral liaison then became their enemy as Citizen V. Eventually joining the team and merged with Atlas before being the ion-powered Vantage. She has worked with the NYPD, V-Battalion, Department of Homeland Security and most recently the Commission for Superhuman Activities.

All data from the awesome folks at Marvel.