* Mr Thomas: The elderly man who owns the house that the Wormsley gang are targeting. He is described as a kind and gentle man, but he is also very lonely.
* Mrs Adams: Mr Thomas's housekeeper. She is a middle-aged woman who is fiercely loyal to Mr Thomas, but she is also very afraid of the Wormsley gang.
* Mike and Jenny: Two children who live in the neighbourhood. They are friends with the Wormsley gang, but they are also horrified by their plans.