Dr. Susan Calvin is a fictional character from the Robot series created by author Isaac Asimov. She serves as a robopsychologist at U.S. Robots and Mechanical Men Corporation, where she studies and analyzes the behavior of robots. Her expertise helps to ensure that robots operate safely and ethically according to the Three Laws of Robotics. Throughout the series, Dr. Calvin is portrayed as intelligent, logical, and often skeptical of human emotions. She plays a crucial role in various stories, exploring the complex relationships between humans and robots, and addressing the moral implications of advanced technology in society.