Yeah I agree 100 percent. Thats exactly what I said earlier in this thread. The whole Dark Passenger part of Dexter is the thing I liked most about in the book that they didn't really go into in the show until like the end where he mentioned it once. They should have him speak like in the book when he captures the guy he is hunting, things like "We have you now, do as we say." Stuff like that would make it a lot better, show the entire dark side of Dexter. Or like the Dark Passenger has its own voice inside Dexter and takes over him when he goes out to
"feed the hunger". They didn't really delve into that angle of it. He is more of an avenger in the TV show, which is ok, its just a slightly different take. The book has him as more of a darker, truly emotionless person whereas throughout the first season, Dexter seems to grow more human. Each version is good, I just prefer the book.