Question: who plays oliver on the big bang theory
[{'answer': 'Walton Goggins', 'provenance': [{'wikipedia_id': '50375161', 'title': 'The Big Bang Theory (season 11)', 'start_paragraph_id': 36, 'start_character': 12, 'end_paragraph_id': 36, 'end_character': 26, 'bleu_score': 1.0, 'section': 'Section::::Cast.:Guest cast.\n'}]}, {'provenance': [{'wikipedia_id': '50375161', 'title': 'The Big Bang Theory (season 11)', 'start_paragraph_id': 36, 'start_character': 0, 'end_paragraph_id': 36, 'end_character': 36, 'bleu_score': 0.5081327481546141, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 46287100763504789}, 'section': 'Section::::Cast.:Guest cast.\n'}]}]