'Grey's Anatomy' star Isaiah Washington

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World-class cardiothoracic surgeon Dr. Preston Burke, played by Isaiah Washington, is the star of cliffhanger number two. After undergoing a dangerous operation to remove a bullet lodged in his spine, Dr. Burke makes it out alive, but his fate as a surgeon is still unknown. His once steady hand is shaking, and it's unclear whether he will ever regain full use of his arm.