David Thewlis was 46 in Harry Potter and the Deathly Hallows: Part 1 when he played the character 'Remus Lupin'.
That was over 14 years ago in 2010.
Today he is 61, and has starred in 84 movies in total, 34 of those since Harry Potter and the Deathly Hallows: Part 1 was released.
In Harry Potter and the Deathly Hallows: Part 1, I think David Thewlis looks: