John Cervenka: John Cervenka. Actor: Most Extreme Elimination Challenge. John Cervenka grew up in San Marino, California and attended the University of Southern California. After college he became a successful commercial real estate broker in Los Angeles. In his spare time, he began writing and performing with one of the most famous comedy troupes in the country, 'The Groundlings'. It was there John was discovered. He went on to become a producer,...
