James Patrick Stuart (b June 16, 1968) is an American actor who portrayed the Leviathan leader Dick Roman in Supernatural, and he played all the Leviathans in the lab after they shape-shifted into Dick.
Stuart has appeared in TV series such as CSI, Seinfeld, Frasier, The Closer, 90210, Still Standing and I'm in the Band, Hot in Cleveland
He was the second actor to portray Will (Cooney) Cortland on the popular soap All My Children. In 2016, he joined the soap opera General Hospital as Valentin Cassadine.