Karen Gillan was 19 in New Town Killers when she played the character 'Young Girl at Bus Station'.
That was over 15 years ago in 2008.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 36, and has starred in 46 movies in total, 42 of those since New Town Killers was released.
In New Town Killers, I think Karen Gillan looks: