Question: who plays the dad in my friend dahmer
[{'answer': 'Dallas Roberts', 'provenance': [{'wikipedia_id': '51180285', 'title': 'My Friend Dahmer (film)', 'start_paragraph_id': 1, 'start_character': 409, 'end_paragraph_id': 1, 'end_character': 423, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '51180285', 'title': 'My Friend Dahmer (film)', 'start_paragraph_id': 15, 'start_character': 0, 'end_paragraph_id': 15, 'end_character': 81, 'bleu_score': 0.8385766789076251, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4551261333957409045}, 'section': 'Section::::Cast.\n'}]}]