Real age of Cameron Monaghan in The Three Investigators and the Secret of Terror Castle
In the movie The Three Investigators and the Secret of Terror Castle, Cameron Monaghan was:
15 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 The Three Investigators and the Secret of Terror Castle was released:
January 1, 2009
And the day in which Cameron Monaghan was born:August 16, 1993
Since movies usually don't take more than one year to be released since the beginning of the filming process, Cameron Monaghan may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.