Pam Ferris was 55 in Harry Potter and the Prisoner of Azkaban when she played the character 'Marge Dursley'.
That was over 20 years ago in 2004.
Today she is 76, and has starred in 34 movies in total, 19 of those since Harry Potter and the Prisoner of Azkaban was released.
In Harry Potter and the Prisoner of Azkaban, I think Pam Ferris looks: