John Forstell is the Assistant Director of the FBI Office of Professional Responsibility. He was originally called in to investigate Special Agent Hannah Wells, but after she was cleared and Deputy Director Jason Atwood was arrested for the death of Majid Nassar, he became Wells' ally.
Before he was named the head of OPR, Asst. Dir. Forstell served as a United States attorney. He was recommended to President Tom Kirkman to serve as the acting Attorney General.