Kelly Macdonald was 34 in Harry Potter and the Deathly Hallows: Part 2 when she played the character 'Helena Ravenclaw'.
That was over 13 years ago in 2011.
Today she is 48, and has starred in 48 movies in total, 16 of those since Harry Potter and the Deathly Hallows: Part 2 was released.
In Harry Potter and the Deathly Hallows: Part 2, I think Kelly Macdonald looks: