Pari gbolohun ti o tẹle: McCarthy ṣe ere akoko 2004/05 pẹlu Des Moines Buccaneers ti United States Hockey League. O si tun dun kọlẹẹjì hockey pẹlu Boston University ni awọn Hockey East ṣaaju ki o to ti a ti kọ nipa awọn San Jose Sharks, 202nd lapapọ ni awọn
2006 NHL Entry Draft. Àwọn ojúewé wọ̀nyí jápọ̀: