Real age of Hunter Parrish in 17 Again
In the movie 17 Again, Hunter Parrish 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 17 Again was released:
January 1, 2009
And the day in which Hunter Parrish was born:May 13, 1987
Since movies usually don't take more than one year to be released since the beginning of the filming process, Hunter Parrish may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.