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"House"-hold name: Kristoffer Polaha as Jeff
"House"-lights: Jeff is a professional cyclist who collapses while training for the Tour de France. He is completely honest with House's team about his illegal training techniques and medications. House finds a Thymoma tumor and realizes the illegal blood doping has inadvertently been keeping the tumor under control, and now that the condition has been diagnosed, Jeff can continue his performance-enhancing techniques without penalty, on the grounds that they are medicinal.
Out-"House": A relative unknown when he did "House," Kristoffer Polaha is now starring on The CW's "Life Unexpected."