That was over 22 years ago in 1999.
Today he is 77, and has starred in 31 movies in total, 15 since Sleepy Hollow was released.
In Sleepy Hollow, I think Ian McDiarmid looks:
Sleepy Hollow scores 7 out of 10 on The Movie Database.
Ian McDiarmid's first acting role was as 'Senator Palpatine' in Star Wars: Episode I - The Phantom Menace, released in 1999 when he was 54.