Question: who does the voice of ronan in epic
[{'answer': 'Colin Farrell', 'provenance': [{'wikipedia_id': '35996674', 'title': 'Epic (2013 film)', 'start_paragraph_id': 1, 'start_character': 433, 'end_paragraph_id': 1, 'end_character': 446, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '35996674', 'title': 'Epic (2013 film)', 'start_paragraph_id': 15, 'start_character': 0, 'end_paragraph_id': 15, 'end_character': 148, 'bleu_score': 0.9214109120166031, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10297798634394089995}, 'section': 'Section::::Cast.:Main cast.\n'}]}]