Well, if he ever meets Nadya, it's going to be interesting. Lots of Russian. 

And not to be that guy, but if you want to be totally culturally accurate, his middle name would be Patronymic, which is hard to construct if you don't often use it. If you want, though it's a roleplay so literally nobody cares, I can give it to you if you tell me his father's name. Otherwise Heritage Russians don't have middle names. ^^ Not trying to be haughty, it's just one of those things where I'm like "OH! Yes!! I finally know a thing!"