How old was Dermot Mulroney in Longtime Companion?

It's common to wonder how old a celebrity was when they starred in a particular film. Knowing that can offer insight into their career stage and personal growth. We’re about to uncover that piece of the puzzle.

In the movie Longtime Companion, Dermot Mulroney was at the age of:

25 years old

That number reflects the celebrity’s real age when the movie was made.

This age was calculated based on the beginning of the release year of Longtime Companion:

January 1, 1989

And also the day Dermot Mulroney was born:

October 31, 1963

Given that most films are released within a year of production, the actual age of Dermot Mulroney during filming may have varied by one year from the shown age.