Ian Hart was 36 in Harry Potter and the Philosopher's Stone when he played the character 'Quirinus Quirrell / Voldemort'.
That was over 22 years ago in 2001.
Today he is 59, and has starred in 68 movies in total, 37 of those since Harry Potter and the Philosopher's Stone was released.
In Harry Potter and the Philosopher's Stone, I think Ian Hart looks: