As a Russian, his name is in the Cyrillic alphabet: IMDB won't let me paste the correct name in Cyrillic letters, but it looks a little like: KOCaKOBCKNN
In a way, trying to spell it any other way is "mispelling". It is true on the website his name is spelled without the 'i'. But either way it's a "transliteration". Not his name. I don't know why IMDB discriminates against Easter Europeans (and Greeks) this way. It's shameful.