Maggie Smith is a person.
Maggie Smith . She has won a record four BAFTA Awards for Best Actress , including for A Private Function ( 1984 ) and The Lonely Passion of Judith Hearne ( 1988 ) , a BAFTA for Best Supporting Actress for Tea With Mussolini ( 1999 ) , and three Golden Globe Awards . Smith played Professor Minerva McGonagall in the Harry Potter film series ( 2001 -- 11 ) .