Matthew Fox reportedly has the top-secret and valuable knowledge of just exactly how his hit show ‘Lost’ ends. Supposedly, he’s the only cast member to know. The final season is underway, but I’d say there are still more questions than answers. We do know, however, that Matthew Fox has been working out a bit. In a rare shirtless scene, we saw Dr. Jack Shephard changing clothes and he revealed, if not the answers to any mysteries, his bare chest.