Question: who voices harold in the captain underpants movie
[{'answer': 'Thomas Middleditch', 'provenance': [{'wikipedia_id': '51483443', 'title': 'Captain Underpants: The First Epic Movie', 'start_paragraph_id': 1, 'start_character': 403, 'end_paragraph_id': 1, 'end_character': 421, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '51483443', 'title': 'Captain Underpants: The First Epic Movie', 'start_paragraph_id': 12, 'start_character': 0, 'end_paragraph_id': 12, 'end_character': 147, 'bleu_score': 0.9146912192286941, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12139119980827833761}, 'section': 'Section::::Voice cast.\n'}]}]