That was over 31 years ago in 1991.
Today he is 80, and has starred in 74 movies in total, 46 since The Silence of the Lambs was released.
In The Silence of the Lambs, I think Scott Glenn looks:
The Silence of the Lambs scores 8.2 out of 10 on The Movie Database.
Scott Glenn's first acting role was as 'Tad Jacks' in The Baby Maker, released in 1970 when he was 29.