The residents of Chester's Mill appear both inside and outside the Dome following their mysterious encounter in the tunnels beneath the town. As the Dome begins to reveal its ultimate agenda, the townspeople are forced to question what and whom they can trust as fresh threats appear, new residents emerge and surprising alliances form.

• Mike Vogel
• Rachelle Lefevre
• Alexander Koch
• Eddie Cahill
• Colin Ford
• Kylie Bunbury
• Dean Norris
• Mackenzie Lintz