Susan Murphy is a fictional character from the animated film series Monsters, Inc.. She is known for her vibrant personality and her role as a skilled scarer. Susan is a monster who works alongside her partner, Mike Wazowski, in the Monstropolis community, where they generate energy by scaring children. In the films, Susan is depicted as a determined and resourceful character. Her journey highlights themes of friendship and teamwork, as she navigates challenges in her career and personal life. The character is voiced by actress Jennifer Tilly, adding depth and charm to her portrayal.