The 35-year-old star portrayed key character Margaery Tyrell in the HBO drama series for four years but her time on the show came to an end in season six when she was killed off in a dramatic fashion, reported Contactmusic.
Dormer is part of black comedy "Venus in Fur", which will premiere in October.
"I would like to think I will always periodically go back to the stage until the day I die," she said.
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