Damian Lewis is the British actor you usually hear using an American accent on television. The star of the hit show “Billions” first made a name for himself playing an American soldier on HBO’s “Band of Brothers,” before he went on to shake up television with his Emmy and Golden Globe winning performance as Sergeant Nick Brody on “Homeland.” In this week’s “Sunday Sitdown,” the actor talks to Willie Geist about his in-depth preparation for his current role as ruthless hedge fund manager Bobby Axelrod, including studying real-life Wall Street titans. It turns out Lewis has also learned a mean game of ping pong in his downtime on the set, so he challenged Willie to a friendly match.

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