Eric Bana was 27 in The Castle when he played the character 'Con Petropoulous'.
That was over 26 years ago in 1997.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 55, and has starred in 39 movies in total, 36 of those since The Castle was released.
In The Castle, I think Eric Bana looks: