2014-08-09, 19:48
Person objects do not currently support translations. Until they do, it is assumed that all names and biographies are to be in English, using the English alphabet. For non English names (Cyrillic, Vietnamese, etc..) you should add these as alternative names.
https://www.themoviedb.org/documentation/editing/people
https://www.themoviedb.org/documentation/editing/people