Anyone that came into the sixth season of 24 and isnt going to be given a chance to show themselves again on the seventh season of 24 is pretty much going to be given a bad review at this point. Some one hit wonders came and did what they were supposed to do - but most ended the show with nothing but a face that will always be connected to the worst season of 24 ever.
Carlos didnt leave a very powerful effect on the viewers, simply because he did not come off as the CTU type in the long run. He comes off as a field agent that is sitting behind the desk, which doesnt make it very easy for his character. I also didnt think that his onscreen connection with his wife, Chloe, was very good either.