A veteran FBI agent who is willing to bend the rules to get results. He forms an unlikely partnership with Assistant District Attorney Decourcy Ward in an effort to clean up corruption in Boston.
An Assistant District Attorney from Brooklyn who comes to Boston as part of the St. Clair Commission, which recommended mass reform of the Boston Police Department. His strong moral compass serves as a foil to Jackie’s ethically questionable tactics.
The thick-skinned wife of Jackie Rohr who, on top of keeping a dysfunctional family together, pursues her own agenda.
Sergeant Chris Caysen, who puts more strain on his family responsibilities in order to root out the criminality in his own BPD unit.
An ambitious private attorney who is married to Decourcy, the principled ADA. In many ways, Decourcy and Siobhan’s ambitions are two sides of the same coin, with Siobhan’s career contrasting Decourcy’s choice to be a public servant.