Is Dean Cain related David Carradine?

No, Dean Cain and David Carradine are not related. Dean Cain is an American actor best known for his role as Superman in the 1990s TV series "Lois & Clark: The New Adventures of Superman." David Carradine was an actor famous for his role in the television series "Kung Fu." While both are notable figures in the entertainment industry, they do not share a familial connection.