I can't shake off the feeling that Igor in this game is... off? He has a much deeper voice this time. I know VAs get changed from time to time, but wouldn't you try to find a substitute that sounds similar? He doesn't really sound like an... Igor, for lack of better word, but a chain smoker instead.
Another part is his greeting. Maybe it's a localisation goof, but Igor never said "Welcome to my Velvet Room", but "the Velvet Room". I even checked in case I misremembered (I've only played a bit of P3P and all of P4G), but he's always greeted you like that since P2 (he didn't at all in P1, but did say "this Velvet Room"), In short, Igor never claimed the room to be his and such a localisation goof would be very odd, given how much more mainstream Persona is nowadays and how much care was put into it.
Lastly, he does appear to be slightly sadistic in this game? When fusing Persona he sometimes chuckles "This might get a bit gruesome" as if he's enjoying it. Which is pretty odd given that Igor is one of the very few supernatural guys who are, without a doubt, on the good side. Hell, that's part of the reason why I like Igor so much and why all of that sticks out like a sore thumb for me.
Speaking of fusions, there's also the fact that Igor in this game doesn't fuse your Personas at all, instead it's the twins doing the work, which is also a first in the series. In fact, this Igor seems to be quite distant, literally and figuratively. In previous games, you sat face to face with him, in this game, he doesn't even know what his assistants are doing, if their confidant is any indication.
So if I were to speculate, I can think of a few reasons:
- Localisation goofs (which I find unlikely given how much care was put into the game)
- Shoddy writing (even more unlikely)
- Igor is brainwashed
- Igor is a fake, which would explain the weird OoC moments and his different voice. In fact, wasn't this done in a MGS game when Sutherland replaced Hayter? I'm not into MGS, but I remember reading something like this. Could be misremembering though.
I just really like Igor, so seeing him like this is odd.