Question: who plays iroh in avatar the last airbender
[{'answer': 'Shaun Toub', 'provenance': [{'wikipedia_id': '2236568', 'title': 'Iroh', 'start_paragraph_id': 23, 'start_character': 0, 'end_paragraph_id': 23, 'end_character': 10, 'bleu_score': 1.0, 'section': 'Section::::Appearance in other media.\n'}]}]