28. Screech, Saved by the Bell (Dustin Diamond)
Alice S. Hall/NBCU Photo Bank/NBCUniversal/Getty Images
Screech never seemed to be annoying when we watched this show as kids. However, watch it now and bloody hell…how did we manage to get through it at all with this guy on screen? His name is highly apt. The loudmouthed git was meant to be a geeky hero. If anything, he probably deserved all the wedgies and wet willies.