The Humans

Main Characters and Their Development

• Andrew Martin: The main character of the book, a mathematics professor at Cambridge University. At the beginning of the book, he is replaced by an alien who must erase all traces of Andrew's discovery. As the story progresses, the alien begins to understand and appreciate human emotions and relationships, leading to an internal conflict and a change in his views on humanity.
• Isabel Martin: Andrew Martin's wife. At the start of the book, she suffers from her husband's detachment, but as the alien begins to understand human feelings, their relationship improves. Isabel becomes a crucial catalyst for change in the alien.
• Gulliver Martin: The son of Andrew and Isabel. A teenager struggling with school and his relationship with his parents. The alien, who has taken Andrew's place, helps Gulliver deal with his issues, leading to an improvement in their relationship and Gulliver's self-confidence.
• Newton: The Martin family's dog. Newton plays an important role in the book, helping the alien understand human emotions and attachments. Through interactions with Newton, the alien begins to experience compassion and love.