Jonathan, Heather, Thomas, Joey, and Bo. And many others. They all share his cell in the asylum. They all share his head, filling it with their voices, talking and laughing and screaming, all at once.
Doctor Jane is here for him. She’s here to talk to him, and him only. Not Jonathan, or Heather, or Bo, or any of the other people in his head. She’s here to help him get out of his head, and out of the asylum.
But the voices are drowning him out, talking over him. As more voices speak up, and he gets ever more overwhelmed, Doctor Jane begins to see that the only way she can get him to talk is if she made the others listen.