I would say that Paul Ballard (Helo) would be the best to go since his storyline has no signifigance of any kind so far, but given the character logic of the show my vote, Laurence Dominic (Jerk security guy) would be the easiest to get rid of with minimal effect on the kinds of stories they could tell. His character really has no purpose but to disagree with Langton. If they got rid of him the show would probably get better, since DeWitt could take on his role and have more stuff to do on the show.
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