Question: who plays agent isler on ncis new orleans
[{'answer': 'Derek Webster', 'provenance': [{'wikipedia_id': '43464683', 'title': 'List of NCIS: New Orleans characters', 'start_paragraph_id': 1, 'start_character': 385, 'end_paragraph_id': 1, 'end_character': 398, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '43464683', 'title': 'List of NCIS: New Orleans characters', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 438, 'bleu_score': 0.925904780871852, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8694502668675071038}, 'section': 'Section::::Abstract.'}]}]