Search by character name

The clips usually only allow you to recognize the actors' faces, but they don't provide their names (real or reel) in the video. If you're thinking of searching for the character's name from the clip here on MDL (MyDramaList) after implementing such a feature, it seems nearly impossible. Most clips are cut from somewhere and uploaded elsewhere without any accompanying info or description.

That said, the suggestion is a good one. Wikipedia follows a similar approach—famous English shows often have individual pages for their fictional characters, but this is typically reserved for highly popular shows.