Simon (the nerd) deserves death
The character is so annoying. During the fight by Roy with the assassin on the train, he didn't do a damn thing to help. Which while annoying is understandable.
But in the final scene, he didn't just stand by passively. He actually kept talking and releasing more and more information when Roy clearly wanted and told him to shut up. Doesn't he understand his place? If you are a useless coward (fair enough. can't exactly expect scientists to be fighters as well), then shut up and do as you are told in combat situations.
Really really wish he had gotten shot and died a painful death.