API hook for filtering comments at display time

Hi-

I’m working on a plugin and I want to be able to filter the comments for a given post at display time, not when saving to the database.

In other words, if I have a number of comments on a given post, I might only want to show a few of them that match some criteria. So far the only methods I’ve seen involve filtering the comments as they are saved to the database. Does anyone know if there’s an API hook or action that I haven’t seen yet that can help me do that?

Thanks,
Korey