Question: who played the well walker in the walking dead
[{'answer': 'Brian Hilliard', 'provenance': [{'wikipedia_id': '33592708', 'title': 'Cherokee Rose (The Walking Dead)', 'start_paragraph_id': 15, 'start_character': 0, 'end_paragraph_id': 15, 'end_character': 14, 'bleu_score': 1.0, 'section': 'Section::::Production.\n'}]}, {'provenance': [{'wikipedia_id': '33592708', 'title': 'Cherokee Rose (The Walking Dead)', 'start_paragraph_id': 15, 'start_character': 0, 'end_paragraph_id': 15, 'end_character': 276, 'bleu_score': 0.957870874785216, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6385116582554499347}, 'section': 'Section::::Production.\n'}]}]