The power-hungry and corrupt town selectman of Chester's Mill, who poses as a moral and religious figure. He orchestrates various schemes to maintain control under the Dome.

Big Jim's son, who exhibits violent and troubled behavior, exacerbated by an undiagnosed medical condition. He struggles with a desire for power while searching for his father's approval.

The resilient and intelligent owner-editor of the local newspaper, known for her determination and independence. She symbolizes democratic freedoms threatened by the Dome's presence.

A resourceful and intelligent teen, also known as “Scarecrow Joe,” who leads his friends in uncovering crucial information under the Dome. He is known for his political insight and wit.

A tough and skilled skateboarder, and a member of Joe's group of friends. She is admired for her strength and competence amidst the town's crisis.

A humorous and easygoing friend in Joe’s group, contributing to their adventures and problem-solving efforts under the Dome. His optimism provides support to his friends.