We know from his personal writing that Tennessee Williams was into trade: hypermasculine men who are just as likely to have sex with men as they are to break their necks. These seductive brutes are strewn throughout his work, just as essential and memorable as his fading belles. There is no Blanche without Stanley. Williams would probably love Matt de Rogatis’s Brick in Ruth Stage’s production of “Cat on a Hot Tin Roof,” which recently opened at Theater at St. Clement’s. The former football hero is still a depressive alcoholic whose drunken escapades earn him a cast, crutches and the growing contempt of his wife, Maggie. But de Rogatis, tatted up and ab-tastic from his backlit shower entrance, compellingly finds the violence and identity crisis at Brick’s core in this contemporary staging. With the character mostly a punching bag for his bellicose Big Daddy Pollitt and the talkative Maggie to explode onto, he is often somewhat of a handsome blank slate. De Rogatis, who also produces, convincingly hints at a torrid inner life, congealed into an imposing physique but betrayed by the anguish he voices at the mention of his ambiguously close relationship with a male friend who died by suicide. The performance matches the play, which like many of Williams’ works, is concerned with surfaces as much as its characters’ deeper worlds. A fine-tuned melodrama about a wealthy Mississippi family undone by its patriarch’s cancer diagnosis, the play melts down the characters’ kept-up appearances and oft-mentioned “mendacity” as they scramble for his inheritance.