Ian McKellen was 74 in The Hobbit: The Battle of the Five Armies when he played the character 'Gandalf'.
That was over 9 years ago in 2014.
Today he is 84, and has starred in 125 movies in total, 26 of those since The Hobbit: The Battle of the Five Armies was released.
In The Hobbit: The Battle of the Five Armies, I think Ian McKellen looks: