How old was Courtney Thorne-Smith in Welcome to 18?

Age is one of those behind-the-scenes facts that fans love to uncover. It reveals something about timing, talent, and opportunity. Here’s the answer to that particular curiosity.

Courtney Thorne-Smith was this age when he appeared in Welcome to 18:

18 years old

After checking the dates, that’s the calculated age of the celebrity.

This age was calculated based on the beginning of the release year of Welcome to 18:

January 1, 1986

And the date of birth of Courtney Thorne-Smith:

November 08, 1967

Since movies usually don't take more than one year to be released since the beginning of the filming process, Courtney Thorne-Smith may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.