A sweet, simple young woman who cannot really cope with the concept that the universe has suddenly opened up to her, Katarina believes that she is dead, and that the Doctor is a god transporting her to the next life. She refers to the TARDIS as a "temple" and also the "Place of Perfection", and literally worships the Doctor, referring to him as "Lord" (much to his annoyance) and having absolute faith in him. She believes that the Doctor was the god Zeus and that he had come to take her on a journey in his temple to the real Place of Perfection. Despite the Doctor's protests, she remains set in this belief.