Question: agatha christie witness for the prosecution bbc cast
[{'answer': 'Toby Jones', 'provenance': [{'wikipedia_id': '52369224', 'title': 'The Witness for the Prosecution (TV series)', 'start_paragraph_id': 16, 'start_character': 419, 'end_paragraph_id': 16, 'end_character': 429, 'bleu_score': 1.0, 'section': 'Section::::Critical reception.\n'}]}, {'answer': 'Andrea Riseborough', 'provenance': [{'wikipedia_id': '52369224', 'title': 'The Witness for the Prosecution (TV series)', 'start_paragraph_id': 4, 'start_character': 12, 'end_paragraph_id': 4, 'end_character': 30, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}, {'answer': 'David Haig', 'provenance': [{'wikipedia_id': '52369224', 'title': 'The Witness for the Prosecution (TV series)', 'start_paragraph_id': 8, 'start_character': 12, 'end_paragraph_id': 8, 'end_character': 22, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}, {'answer': 'Monica Dolan', 'provenance': [{'wikipedia_id': '52369224', 'title': 'The Witness for the Prosecution (TV series)', 'start_paragraph_id': 5, 'start_character': 12, 'end_paragraph_id': 5, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}, {'answer': 'Billy Howle', 'provenance': [{'wikipedia_id': '52369224', 'title': 'The Witness for the Prosecution (TV series)', 'start_paragraph_id': 3, 'start_character': 12, 'end_paragraph_id': 3, 'end_character': 23, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}, {'answer': 'Paul Ready', 'provenance': [{'wikipedia_id': '52369224', 'title': 'The Witness for the Prosecution (TV series)', 'start_paragraph_id': 13, 'start_character': 12, 'end_paragraph_id': 13, 'end_character': 22, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}, {'answer': 'Tim McMullan', 'provenance': [{'wikipedia_id': '52369224', 'title': 'The Witness for the Prosecution (TV series)', 'start_paragraph_id': 9, 'start_character': 12, 'end_paragraph_id': 9, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}, {'answer': 'Hayley Carmichael', 'provenance': [{'wikipedia_id': '52369224', 'title': 'The Witness for the Prosecution (TV series)', 'start_paragraph_id': 12, 'start_character': 12, 'end_paragraph_id': 12, 'end_character': 29, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}, {'answer': 'Dorian Lough', 'provenance': [{'wikipedia_id': '52369224', 'title': 'The Witness for the Prosecution (TV series)', 'start_paragraph_id': 11, 'start_character': 12, 'end_paragraph_id': 11, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}, {'answer': 'Kim Cattrall', 'provenance': [{'wikipedia_id': '52369224', 'title': 'The Witness for the Prosecution (TV series)', 'start_paragraph_id': 6, 'start_character': 12, 'end_paragraph_id': 6, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}]