I saw Valkyria Chronicles in my steam library, which reminded me that I decided against buying VC4 because I played the demo, and one of the main party members annoyed and disgusted me so intensely that I couldn't stand the thought of having to endure him.
If it had let me kill him off, that would have been something, but as far as my research could uncover, he was exempt from permadeath. Probably due to plot reasons.