Ian McKellen was 61 in The Lord of the Rings: The Fellowship of the Ring when he played the character 'Gandalf'.
That was over 22 years ago in 2001.
Today he is 84, and has starred in 125 movies in total, 75 of those since The Lord of the Rings: The Fellowship of the Ring was released.
In The Lord of the Rings: The Fellowship of the Ring, I think Ian McKellen looks: