When Jaws was a popular movie, I heard from my students often about how I looked like Richard Dreyfus. When Mr. Holland's Opus came out, I not only heard the comparisons again, but some of my students accidentally called me Mr. Holland. (My real name sounds similar to that.) I asked them why they were bringing it up. Their answer was most rewarding: they said that I was one of the teachers in their lives who had made a positive difference, and they associated Mr. Holland with me. I considered it an honor.
These days, I'm guessing people would say I most resemble Uncle Fester. ;-)