Question: who played uncle fester in the addams family movies
[{'answer': 'Christopher Lloyd', 'provenance': [{'wikipedia_id': '608273', 'title': 'Uncle Fester', 'start_paragraph_id': 1, 'start_character': 156, 'end_paragraph_id': 1, 'end_character': 173, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '608273', 'title': 'Uncle Fester', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 457, 'bleu_score': 0.974188104609039, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4982248916114937256}, 'section': 'Section::::Abstract.'}]}]