Sgt. James Doakes (Erik King) is a main character on Seasons 1 and 2 of "Dexter," and the only person able to see through Dexter Morgan's (Michael C. Hall) front of normalcy. Suspecting a dark secret and fueled by hatred, Doakes begins to informally investigate Dexter, although Dexter manages to throw him off the trail. Doakes eventually discovers Dexter's blood slide collection and realizes that he is the serial killer known as the Bay Harbor Butcher.
Doakes attempts to arrest Dexter in the Everglades; however, Dexter has manipulated the evidence to instead point at Doakes as the Butcher. He locks him into a cabin while he decides how to proceed, but psychopath Lila Tournay (Jaime Murray) ignites a propane explosion and Doakes is incinerated. Law enforcement officials close the case with the conclusion that Doakes was the Butcher.
"You give me the ******* creeps, you know that Dexter?"
"Grab a crayon psycho - and scribble this down."