Smith, who played Professor McGonagall in the fantasy franchise, died at age 89 on Friday, Sept. 27, while Gambon died on the same date in 2023 at age 82

Downton Abbey’s Maggie Smith has died at the age of 89, exactly one year after one of her closes Harry Potter co-stars.

Several stars of the "Harry Potter" films have died, including Alan Rickman, Michael Gambon, and most recently, Maggie Smith, who played McGonagall.