Jason Isaacs was 43 in Harry Potter and the Order of the Phoenix when he played the character 'Lucius Malfoy'.
That was over 17 years ago in 2007.
Today he is 60, and has starred in 101 movies in total, 54 of those since Harry Potter and the Order of the Phoenix was released.
In Harry Potter and the Order of the Phoenix, I think Jason Isaacs looks: