Daniel Brühl was 16 in Sven's Secret when he played an uncredited character.
That was over 28 years ago in 1995.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 45, and has starred in 71 movies in total, 66 of those since Sven's Secret was released.
In Sven's Secret, I think Daniel Brühl looks: