- Sam Cullen- Deputy director of the FBI field office.
- Andrew Hacker- Supervisor of the FBI field office.
- Robert Kirby- The deputy director of the FBI until he was murdered at the hands of Max Kennan, Dr. Temperance Brennan's estranged father.
- Seeley Booth- A special agent.
- Charlie Burns- A special agent.
- Marcus Geier- A forensic technician.
- Genny Shaw- A special agent (Occasionally helps Booth).
- Payton Perotta- A special agent, who has a mutual attraction to Booth at one point.
- Lance Sweets- An FBI psychologist.
- Tim Sullivan- Nicknamed Sully, he was an special agent, who left on his boat 'Temperance' to sail the seas.
Inside the BuildingEdit
Where Special Agent Seeley Booth works whenever he's not in the field. He's also conducted various interviews here as well.
Where the suspects in the current investigations are taken to be questioned for information or to get a possible confession out of them.
Where Lance Sweets works and also where many of the people including Brennan and Booth go to for their therapy sessions.
Where Booth and Brennan interview family members of the deceased victims. Sweets sometimes aids them as well.