Anyone can be killed…

Bran in the promo of episode 5, "The Ghost of Harrenhal"

Dany in the promo of episode 5, "The Ghost of Harrenhal"

Stannis in the promo of episode 5, "The Ghost of Harrenhal"

Stannis in the promo of episode 5, "The Ghost of Harrenhal"

Arya in the promo of episode 5, “The Ghost of Harrenhal