10 Things You Didn’t Know about Robert Clohessy 17 hours ago Robert Clohessy has become a very familiar face in his more than 30-year career. He has made dozens of on-screen appearances and he has become well known for a variety of roles. In more recent years, however, he is most recognizable for playing Sid Gormley in the popular TV series Blue Bloods. Although he has been on the show for more than a decade, there are some people who have started to speculate that this season could be his last. Although nothing has officially been announced, some viewers believe that things are shaping up for his character to be written out of the show. Since he plays such an important role in the series, it’s pretty difficult to picture