▁the ▁special ▁effects ▁were ▁created ▁at ▁Montreal ' s ▁R ode o ▁F X ▁stud ios ▁which ▁has ▁won ▁Em my ▁Awards ▁previously ▁for ▁its ▁work ▁on ▁the ▁series . ▁ ▁Cast ing ▁ ▁The ▁sixth ▁season ▁saw ▁the ▁return ▁of ▁Isaac ▁H emp st ead ▁Wright ▁as ▁Bran ▁St ark , ▁Krist ian ▁N air n ▁as ▁H odor , ▁Ell ie ▁K end rick ▁as ▁Me era ▁Re ed , ▁Gem ma ▁Wh el an ▁as ▁Y ara ▁Grey jo y , ▁and ▁R ory ▁McC ann ▁as ▁Sand or ▁" The ▁H ound " ▁C leg ane , ▁ ▁who ▁did ▁not ▁appear ▁in ▁the ▁fifth ▁season . ▁C live ▁Russell , ▁Tob ias ▁M enz ies , ▁Patrick ▁Mal ah ide , ▁Richard ▁D orm er ▁and ▁Paul ▁K aye ▁also ▁returned ▁to ▁the ▁show ▁as ▁Bry nd en ▁Tul ly , ▁Ed m ure ▁Tul ly , ▁Bal on ▁Grey jo y , ▁Ber ic ▁D ond arr ion ▁and ▁Thor os ▁of ▁My r ▁after ▁not ▁appearing ▁since ▁the ▁third ▁season . ▁Jonathan ▁P ry ce ▁as ▁the ▁High ▁S par row ▁was ▁added ▁to ▁the ▁series ▁main ▁cast ▁after ▁appearing ▁in ▁a ▁rec urr ing ▁role ▁in ▁the ▁previous ▁season . ▁ ▁Ac ross ▁the ▁N arrow ▁Sea , ▁Mel anie ▁Lib urd ▁plays ▁a ▁Red ▁priest ess ▁from ▁As sh ai ▁who ▁is ▁in ▁R ' h ll or ' s ▁service . ▁At ▁the ▁Re ach , ▁House ▁Tar ly ▁is ▁introduced , ▁with