Thread:Tooniee/@comment-5278765-20140523222529/@comment-5278765-20140524060148

I think that a lot of them are extras and the actors who played them added themselves on IMDb. A few of them, it's people who were erroneously uncredited (or were uncredited because it's not a speaking part, such as babies and toddlers). But a few of them are things like IMDb saying that Nurse Kathleen was in an episode that she actually wasn't in. I don't know how things like that get added to IMDb. For Let the Angels Commit, IMDb actually says that Embeth Davidtz wasn't credit, but she was.

I would agree that they should only be added if whoever adds them can show when/where they were seen.