Dexter Morgan

Dexter Morgan is the main protagonist of ''Dexter. ''He is a forensic blood splatter analyst who works for the Miami Metro Police Department and in his spare time he is a vigilante serial killer who targets other murderers who have evaded the justice system. He follows a code of ethics taught to him in childhood by his adoptive father, Harry, and hinges on two principles: Dexter can only kill people after finding conclusive evidence that they are guilty of murder, and he must not get caught.