Question: actor who played gavin in gavin and stacey
[{'answer': 'Mathew Frazer Horne', 'provenance': [{'wikipedia_id': '4122349', 'title': 'Mathew Horne', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 19, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4122349', 'title': 'Mathew Horne', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 345, 'bleu_score': 0.963949056609222, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3273961711749465852}, 'section': 'Section::::Abstract.'}]}]