Real age of Casey Affleck in Good Will Hunting
In the movie Good Will Hunting, Casey Affleck was:
21 years old
That was the real age of the celebrity according to our calculation.
The calculation of the shown age took into account the first day of the year in which the movie Good Will Hunting was released:
January 1, 1997
And the day in which Casey Affleck was born:August 12, 1975
Since movies usually don't take more than one year to be released since the beginning of the filming process, Casey Affleck may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.