Question: who played eric olsen on north of 60
[{'answer': 'John Oliver', 'provenance': [{'wikipedia_id': '1001868', 'title': 'North of 60', 'start_paragraph_id': 5, 'start_character': 662, 'end_paragraph_id': 5, 'end_character': 673, 'bleu_score': 1.0, 'section': 'Section::::Casting.\n'}]}, {'provenance': [{'wikipedia_id': '1001868', 'title': 'North of 60', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 1091, 'bleu_score': 0.974585799855568, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9891154427059083565}, 'section': 'Section::::Casting.\n'}]}]