Question: who plays the shadow man in princess and the frog
[{'answer': 'Keith David', 'provenance': [{'wikipedia_id': '6141751', 'title': 'The Princess and the Frog', 'start_paragraph_id': 1, 'start_character': 481, 'end_paragraph_id': 1, 'end_character': 492, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '6141751', 'title': 'The Princess and the Frog', 'start_paragraph_id': 15, 'start_character': 194, 'end_paragraph_id': 15, 'end_character': 614, 'bleu_score': 0.7548906058230691, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9014875299012880613}, 'section': 'Section::::Cast.\n'}]}]