Question: who is the actor that plays kol mikaelson
[{'answer': 'Nathaniel Buzolic', 'provenance': [{'wikipedia_id': '12794755', 'title': 'Nathaniel Buzolic', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 17, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '12794755', 'title': 'Nathaniel Buzolic', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 410, 'bleu_score': 0.942340155314736, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5315166246007066267}, 'section': 'Section::::Abstract.'}]}]