How old was Dermot Mulroney in Zodiac?

Knowing a celebrity’s age during a specific movie can be oddly satisfying. That knowledge can reshape how we view their performance. We’re about to uncover that piece of the puzzle.

In the movie Zodiac, Dermot Mulroney was at the age of:

43 years old

Based on our estimate, that was the actual age of the celebrity at the time.

The calculation of the shown age took into account the first day of the year in which the movie Zodiac was released:

January 1, 2007

And the date of birth of Dermot Mulroney:

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.