Natalie Dormer has confirmed that
character Jon Snow is dead - but teased that his cadaverous state might not last forever.
Fans were left with a Schrodinger's cat situation at the end of series five, unsure whether Jon Snow (Kit Harington) was left dead or alive after being stabbed by members of the Night's Watch.
But the 34-year-old actress, who plays Margaery Tyrell in the show, said even Snow cannot defy human physiology.
She told Channel 5 News: "If you get stabbed that many times, you're dead, you know. There are some basic medical rules that even apply in Westeros. So Jon Snow is dead right now."
Pushed on her choice of the phrase "right now", she repeated emphatically, "right now".
With Harington's character's death confirmed, the question on fans' lips is whether he stays that way, and sightings of him on set in Ireland point to a return.
Dormer added that this series will be the most unpredictable yet as it is the first that will overtake the source text, George RR Martin's A Song of Ice and Fire novels.
"You can never predict Game of Thrones. And of course we have the new situation this year which is completely unprecedented that George hasn't published the next book so it is new for everyone."
Instead of being fatigued by the constant rumours of whether Snow is back, Dormer said she "loves all the theories people have".
Game of Thrones series six returns in April.