Real age of William Shatner in The Butler's Night Off
In the movie The Butler's Night Off, William Shatner was:
19 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 Butler's Night Off was released:
January 1, 1951
And the day in which William Shatner was born:March 22, 1931
Since movies usually don't take more than one year to be released since the beginning of the filming process, William Shatner may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.