You know who has joined my short list of "they cry, I cry?" (Well, also Ewan McGregor at the end of Moulin Rouge.) Emily Deschanel on Bones.
I just started watching and am sort of skipping through and around the seasons - popcorn entertainment, but she has a somewhat similar way of crying to SMG, subtle, eyes pool with tears or maybe just a single tear down her cheek and it never feels manufactured somehow; when she crumples into really hard sobs occasionally (as Sarah does in DT) it hurts that much harder. And weirdly enough her co-star TJ Thyne (and I'm not all the crazy about the character he plays, but boy does he do tearful great).