Question: who plays the psychiatrist on american horror story cult
[{'answer': 'Cheyenne Jackson', 'provenance': [{'wikipedia_id': '51867239', 'title': 'American Horror Story: Cult', 'start_paragraph_id': 2, 'start_character': 81, 'end_paragraph_id': 2, 'end_character': 97, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]