Tom Felton was 20 in Harry Potter and the Half-Blood Prince when he played the character 'Draco Malfoy'.
That was over 14 years ago in 2009.
Today he is 36, and has starred in 41 movies in total, 29 of those since Harry Potter and the Half-Blood Prince was released.
In Harry Potter and the Half-Blood Prince, I think Tom Felton looks: