He is a loyal servant of the US of A, former military deceived by Arvin Sloane. He is Sydney’s right hand man, played CIA Director for a spell and his whole family fell victim to the Covenant. Marcus Dixon is a whole-hearted American, focused on bringing down the evil of the world, and he’s smooching on CIA Director Chase. But is he harboring a secret agenda? Is there a dark side of Dixon that has been hidden by his love for Sydney and his children? Is his outward soft side balanced out by an inner darkness?
We first meet Dixon as Sydney’s loyal partner. We come to find that he is in the dark when it comes to the true workings of SD-6 and its allegiance to the country. We plead with Sydney to tell Dixon the truth and when she finally has no choice, he grows bitter and resentful. He returns to save her and joins the real CIA.
When Diane is killed in revenge for Emily’s death, Dixon goes on a Vicatin binge and switches the results of his drug test. This is the first time we see Dixon’s desperation and lack of control, up until that point Dixon had always been the rock. After Sydney returned from her missing 2 years, Dixon kept the truth from her, to protect her; complete role reversal from the first season.
It has been mentioned in several spoilers and speculations that Dixon may have turned on the CIA and that this season we will see a different side of Dixon, a sinister side. Dixon, as a character, has always distanced himself from the Rambaldi plot line, other than hacking into Project Blackhole for the Rambaldi box to save his children. If he isn’t involved in P5 or Rambaldi, what is he involved in? Is it connected to Sloane? Is he in on it alone? With Jack? What is next for our American hero?