Dennis is kind, direct and funny guy, who enjoys boxing in his free time. He works as a Detective with the Miami Police Department and is Michael's former partner. The two were really good friends and it was hard for Dennis to tell Michael that he could only be on desk duty after Michael was shot. Dennis also looked out for Jane after Michael's death and made a great effort to clear Michael's name posthumously regarding the Sin Rostro case. After clearing the air with Jane, Dennis gives her boxing lessons as a way for her to release her anger.