Dame Maggie Smith played Professor Minerva McGonagall in 8 "Harry Potter" movies and Lady Violet Crosby in six seasons on "Downton Abbey", all the while suffering from breast cancer. Just like the characters she brought to life, she is one tough lady. Downton Abbey Costumes, Downton Abbey Fashion, Maggie Smith Downton Abbey, Downton Abbey Season 1, Lady Violet, Dowager Countess, Edwardian Fashion, Edwardian Era, Costume Design