Question: which actor plays the night king in game of thrones
[{'answer': 'Richard Colin Brake', 'provenance': [{'wikipedia_id': '8225476', 'title': 'Richard Brake', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 19, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '8225476', 'title': 'Richard Brake', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 199, 'bleu_score': 0.509184964148526, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16770724346312536918}, 'section': 'Section::::Abstract.'}]}]