Question: who plays ray purchase in toast of london
[{'answer': 'Harry Peacock', 'provenance': [{'wikipedia_id': '40950058', 'title': 'Toast of London', 'start_paragraph_id': 10, 'start_character': 12, 'end_paragraph_id': 10, 'end_character': 25, 'bleu_score': 1.0, 'section': 'Section::::Cast and characters.:Main.\n'}]}, {'provenance': [{'wikipedia_id': '40950058', 'title': 'Toast of London', 'start_paragraph_id': 10, 'start_character': 0, 'end_paragraph_id': 10, 'end_character': 285, 'bleu_score': 0.925374268846712, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4421975938059554974}, 'section': 'Section::::Cast and characters.:Main.\n'}]}]