Question: who is the actor who plays lavon hayes
[{'answer': 'Cress Williams', 'provenance': [{'wikipedia_id': '19532321', 'title': 'Cress Williams', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 14, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '19532321', 'title': 'Cress Williams', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 250, 'bleu_score': 0.828417798589399, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16486434511193788312}, 'section': 'Section::::Abstract.'}]}]