Patrick Dempsey at Grand Prix of Baltimore [Pictures]
To "Grey's Anatomy" fanatics, he'll always be the actor who played Dr. Derek Shepherd (more widely known as "McDreamy"). But on Aug. 31, Patrick Dempsey will be the driver of the No. 27 Porsche in the Grand Prix of Baltimore American Le Mans Series (ALMS) race. See pictures of Patrick Dempsey at the 2013 Grand Prix of Baltimore.
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Patrick Dempsey races
Farrell Thorpe (right) of Wrightsville Beach, N.C., shakes hands with driver Patrick Dempsey before the start of the American LeMans race Saturday.