Right now, if you enter an actor for an episode, it automatically fills in the character name that has been used with that actor on the same show. Assuming that there's only one character that actor has played.
Having something that does the reverse, and fills in the actor if that character has only been played by that actor, would be helpful.
For instance, I'm watching iZombie and there's minor characters from previous episodes. I don't remember the actor names... but if I put in the character name then the actor would just pop in and hey, there's an entry. As opposed to waiting until the end and sorting through all the end-credit co-stars. Plus usually the character name is shorter than the actor name, so it would save some typing.
No big deal, just something to think about.