Question: who does the voice of the food critic in ratatouille
[{'answer': "Peter O'Toole", 'provenance': [{'wikipedia_id': '14941280', 'title': 'Ratatouille (film)', 'start_paragraph_id': 2, 'start_character': 303, 'end_paragraph_id': 2, 'end_character': 316, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]