Personally, I feel Buckbeak may have made a target of him/herself by saying s/he was non-Vanilla. While s/he may be Mafia, we'll know if s/he turns up dead on day 3. This is why we now need to figure out what role Buckbeak is, to determine if the Doctor should protect him/her because s/he may have made a target of themself.
Whoa, long post about nothing really.