Amy (The Colour of Monsters)

Amy was a girl who encountered an injured alien in her family's barn. Though the alien was contemptuous of her and all humans, she talked to him and named him after her cat Misha.

Amy believed the alien when he told her that only she could see him. She talked with him about her life, but when she got too close, he started to strangle her. He was stopped by the Doctor, who destroyed the alien and comforted Amy. (PROSE: The Colour of Monsters)