Minerva McGonagall is a fictional character from the Harry Potter series created by J.K. Rowling. She serves as the Deputy Headmistress and Transfiguration professor at Hogwarts School of Witchcraft and Wizardry. Known for her strict yet fair demeanor, McGonagall is a skilled witch and a member of the Gryffindor house. In addition to her teaching role, McGonagall is also an Animagus, able to transform into a cat. Throughout the series, she plays a crucial role in the fight against Lord Voldemort and supports the main characters, including Harry Potter, in their quest to defeat dark forces.