Hans Lundgren (born 3 November 1957), better known as Dolph Lundgren (/ˈlʌndɡrən/, Swedish: [¹dɔlːf ¹lɵnːdɡreːn] (listen)), is a Swedish actor, filmmaker, martial artist, and chemical engineer. Lundgren's breakthrough came in 1985, when he starred in Rocky IV as the imposing Soviet Union boxer Ivan Drago. Since then, he has starred in more than 40 films, almost all of them in the action genre.