Hansen (foaled April 23, 2009 in Kentucky), nicknamed 'White Lightning' and 'The Great White Hope', is a grey American Thoroughbred racehorse. Out of the mare Stormy Sunday, he is sired by Tapit. He is famous for having a coat that has grayed out to white far more rapidly than is typical, which led sportscaster Frank DeFord to describe him as a "four-legged Steve Martin. He is named after his owner and breeder, Dr. Kendall Hansen. He was trained by Mike Maker, and his regular jockey was Ramon Dominguez.