Question: who plays carl's friend nick on shameless
[{'answer': 'Robbie Pratt', 'provenance': [{'wikipedia_id': '42286485', 'title': 'List of Shameless (American TV series) characters', 'start_paragraph_id': 183, 'start_character': 11, 'end_paragraph_id': 183, 'end_character': 23, 'bleu_score': 1.0, 'section': 'Section::::Recurring cast.:Nando.\n'}]}]