Emmy Nominees: Best Guest Actress in a Drama Series

My predictions: 3/6, picking only Martindale, Rigg, and Janney

I'm not terribly disappointed by the omissions in this category since they weren't inclusions I was advocating for, but I'm always surprised that certain shows get honored, perhaps deservedly, in this race when they don't show up anywhere else. Margo Martindale (The Americans) has been the biggest example of that, and Khandi Alexander (Scandal) never competed for a major award before and is now here for a show that was all but forgotten this year and only ever really showed up in a couple places before. Cicely Tyson (How to Get Away with Murder) is an interesting inclusion for such a show, which usually only gets buzz for its lead actress. Rachel Brosnahan (House of Cards) is a prime example of honoring an actor or actress for a larger role when he or she only appears in a small part in a later season of a show. Diana Rigg (Game of Thrones) is a perennial nominee at this point, and Allison Janney (Masters of Sex) is expectedly back.

Who should win? I've only seen three of these, and I'd pick Rigg at this point.
Who will win? I think it will be Tyson or Janney again.