George Thompson

George was a Tenza child who used a perception filter to convince Alex and Claire that he was their son. When George was afraid, he sent his fears into the doll's house in his cupboard, where they turned into Peg Dolls. One night, he overheard his parents talking about sending him to see a doctor about his fears. However, George misinterpreted this for rejection as their son, causing the Peg Dolls to begin kidnapping people and stealing things that scared him. Eventually, his fears sent a plea for help to the Eleventh Doctor's psychic paper.

When the Doctor arrived, he tried to help George face his fear and deduced that there was a powerful alien presence and that the monsters he feared were real. When he opened the cupboard to face these monsters, he found nothing, and eventually realised what George was. He forced Alex to remember that Claire could not have children, leading to George's distress and unintentionally having the Doctor and Alex being sucked into the cupboard.

As the Doctor and Alex were being attacked by the Dolls, the former shouted out to George to take control of the situation and face his fears. He appeared in the doll house as well, but was also attacked due to his lingering fear of abandonment. Alex rushed towards George and protected him from the Dolls, assuring him that he was his son and would not be abandoned. Everyone was subsequently released from the doll house and returned to normal, while George continued to live as a normal boy. However, the Doctor did promise to return when he was going through puberty, which is "always a funny time". (DW: Night Terrors)