Question: who played charlie dalton in dead poets society
[{'answer': 'Gale Hansen', 'provenance': [{'wikipedia_id': '129493', 'title': 'Dead Poets Society', 'start_paragraph_id': 18, 'start_character': 12, 'end_paragraph_id': 18, 'end_character': 23, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}, {'provenance': [{'wikipedia_id': '129493', 'title': 'Dead Poets Society', 'start_paragraph_id': 18, 'start_character': 0, 'end_paragraph_id': 18, 'end_character': 41, 'bleu_score': 0.6147881529512641, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4968298480057340097}, 'section': 'Section::::Cast.\n'}]}]