Imelda Staunton was 50 in Harry Potter and the Order of the Phoenix when she played the character 'Dolores Umbridge'.
That was over 17 years ago in 2007.
Today she is 68, and has starred in 77 movies in total, 34 of those since Harry Potter and the Order of the Phoenix was released.
In Harry Potter and the Order of the Phoenix, I think Imelda Staunton looks: