Quote Originally Posted by Night Fury View Post
Davos Seaworthy.
No-one's touching my Davos. That's just the worst luck to have your signature character die on you.

Anyway, in no real particular order:

1. Osha
2. Grand Maester Pycelle
3. Podrick Payne
4. Ramsey Bolton
5. Margaery Tyrell (the wildcard. Would be very shocking if she did die somehow)

To be honest, any character who hasn't appeared in ages (Osha, Rickon, Tullys and Greyjoys), or been out of focus (Tyrells, Small Council) is in danger. Heck, they all are. This is Game of Thrones.