Question: who does the voice of the captain in spongebob
[{'answer': 'Michael McKean', 'provenance': [{'wikipedia_id': '42348013', 'title': 'List of SpongeBob SquarePants cast members', 'start_paragraph_id': 1, 'start_character': 689, 'end_paragraph_id': 1, 'end_character': 703, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]