7. Donna Hayward
Other images took a tighter hold on audience imaginations, but nothing conveyed the tragedy of Laura Palmer's death like her best friend Donna looking at her empty desk, realizing what it meant, and starting to sob uncontrollably right there in homeroom. Donna was the heart of the high-school-kids material on the show, the character who was the most square and reserved, and also the most cognizant that what happened to Laura could happen to anyone. She gave the dead girl her voice.