Okay, look: I don't expect the people who write comics to know Japanese. Lord knows they don't know much about real Japanese culture. But at the very least they could check with somebody when they decide to try and use the Japanese language. I've been over this before. This is not allowed:
This is one of the first things you learn in first year Japanese. "San" is an honorific. You never apply an honorific to yourself. It's incredibly arrogant and no Japanese person would ever think of doing that.
Honorifics are exclusively for other people. If this Kodama is supposed to be Japanese he should be saying "Kodama, Legionnaire-san."
And I don't want anyone to pull out the "things can change in a thousand years" argument. The Japanese have been doing this the same way for the past two thousand years. I don't think this most basic of things about the Japanese language will change in the next thousand.
Do a little research, guys. It wouldn't take that much. You can call me, if you want.