Jeopardy!

Ken Jennings, Betsey Casman, J.D. Smith (2004x148)

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J.D. Smith, an editor & writer from Washington, D.C.; Betsey Casman, an appeal & grievance analyst from Las Vegas, Nevada; Ken Jennings, a software engineer from Salt Lake City, Utah (whose 38-day cash winnings total $1,321,660).