The scariest John Goodman roles There are monsters living at 10 Cloverfield Lane, the unconventional thriller that was directed by Dan Trachtenberg earlier this year. But there was no monster bigger than John Goodman’s character, Howard Stambler! Although Goodman had his breakout role as the affable Dan Conner on Roseanne, he’s demonstrated greater versatility on the big screen with an unexpected sense of menace.